Required using statements

using Microsoft.SharePoint;
using Microsoft.Office.Server;
using Microsoft.Office.Server.UserProfiles;

Then sample code

try
{
   site = SPContext.Current.Site;
   ServerContext serverContext = ServerContext.GetContext(site);
   UserProfileManager userProfileManager = new UserProfileManager(serverContext);
   UserProfile currentUserUserProfile = userProfileManager.GetUserProfile(System.Web.HttpContext.Current.User.Identity.Name);

   string nameSurname = (string)currentUserUserProfile["preferredname"].Value;
   string email = (string)currentUserUserProfile["workemail"].Value;
   string companyName = (string)currentUserUserProfile["company"].Value;
}
finally
{
   site.RootWeb.Dispose();
   site.Dispose();
}

Atalay Aktaş works on Microsoft Turkey Office as Business Productivity Solutions Specialist. He shares a presentation that contains general information about Sharepoint and Office 2010 product family. Presentation language is Turkish, includes 50 slide and totaly 14.8 MB on SkyDrive.

You can download it via this link

SPFieldLookupValue category = new SPFieldLookupValue(1, "Books");

and then use it to set field value

item["Category"] = category

        static void Main(string[] args)
        {
            SPSite site = null;
            SPWeb web = null;

            try
            {
                site = new SPSite("http://testSite/SubWeb/Pages/");
                web = site.OpenWeb();
                PublishingWeb publishingWeb = PublishingWeb.GetPublishingWeb(web);
                SPContentTypeId contentType = new SPContentTypeId("YourContentTypeId");
                PageLayout[] layouts = publishingWeb.GetAvailablePageLayouts(contentType);
                PageLayout pageLayout = layouts[0];
                string pageName = Guid.NewGuid().ToString() + ".aspx";

                SPUser user = web.EnsureUser("DOMAIN\\USERNAME");
                string createdDate = "2009-11-05T22:35:10Z";
                string modifiedDate = "2009-11-05T22:35:10Z";

                web.AllowUnsafeUpdates = true;
                PublishingPage newPage = publishingWeb.GetPublishingPages().Add(pageName, pageLayout);

                newPage.ListItem["Author"] = user.ID;
                newPage.ListItem["Editor"] = user.ID;
                newPage.ListItem["Created"] = createdDate;
                newPage.ListItem["Modified"] = modifiedDate;
                newPage.ListItem.UpdateOverwriteVersion();

                web.AllowUnsafeUpdates = false;

                Console.WriteLine("OK");
                Console.ReadLine();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                Console.ReadLine();
            }
            finally
            {
                web.Dispose();
                site.RootWeb.Dispose();
                site.Dispose();
            }
        }

        static void Main(string[] args)
        {
            SPSite site = null;
            SPWeb web = null;

            try
            {
                site = new SPSite("http://testsite/subweb/Pages/");
                web = site.OpenWeb();
                PublishingWeb publishingWeb = PublishingWeb.GetPublishingWeb(web);
                SPContentTypeId contentType = new SPContentTypeId("YourContentTypeID");
                PageLayout[] layouts = publishingWeb.GetAvailablePageLayouts(contentType);
                PageLayout pageLayout = layouts[0];
                string pageName = "PageName.aspx";

                PublishingPage newPage = publishingWeb.GetPublishingPages().Add(pageName, pageLayout);
                newPage.Update();
                newPage.ListItem.File.CheckIn("created");
                newPage.ListItem.File.Publish("created");

                Console.WriteLine(newPage.Url);
                Console.WriteLine("OK");
                Console.ReadLine();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                Console.ReadLine();
            }
            finally
            {
                web.Dispose();
                site.RootWeb.Dispose();
                site.Dispose();
            }
        }

Consider the following scenario. You create a survey, and then you add a workflow to the survey in Microsoft Windows SharePoint Services 3.0. Then, you connect to the survey and respond to it. Finally, you view the response that you submitted, and then you try to start a workflow from the response. To do this, you click the arrow next to the response, click Workflows, click the workflow that you added, type your user name in the Reviewers box, and then click Start. However, the workflow does not start. Instead, the status of the workflow appears as Failed to Start.

This issue occurs because starting a workflow from a survey response is not supported in Windows SharePoint Services 3.0. Although the Workflows option appears when you click the arrow next to a survey response, you cannot start a workflow from a survey response.

Microsoft recently released a new Silverlight 4 based facebook client for both Windows and Mac OS X. Scott Guthrie originally demonstrated this Silverlight client for Facebook during his PDC 2009 keynote late last year.

For more information, visit MicrosoftFeed article.

Based on customer requests for more robust compliance features, Microsoft has improved the validation capabilities of lists and libraries. Validation is now supported at both list and item levels.

For instance, a list owner can configure a validation to disallow the start date of an event item (stored in one column) to be after the end date of the event (stored in another column). If a user enters a start date that is later than the specified end date they will be presented with an error message when he or she attempts to save the item.

In another example, people can specify a column in a list as unique so that a contact list may not contain two entries with the same email address.

The activity feed in SharePoint 2010 is very interesting. It is a way to see and read what your co-workers are doing. Most of your actions in SP2010 will end up in the activity feed.

But what about your actions and updates outside the organisation? Like twitter?

Stef van Hooijdonk created a class that will import your twitter updates ( through your public timeline rss feed ) and will post those updates to your activityfeed. Form more information and download; click here...

MOSS Faceted Search is a set of web parts that provide intuitive way to refine search results by category (facet). 

The facets are implemented using SharePoint API and stored within native SharePoint METADATA store. The solution demonstrates following key features:

• Grouping search results by facet
• Displaying a total number of hits per facet value
• Refining search results by facet value
• Update of the facet menu based on refined search criteria
• Displaying of the search criteria in a Bread Crumbs
• Ability to exclude the chosen facet from the search criteria
• Flexibility of the Faceted search configuration and its consistency with MOSS administration

For more information go to the project site

Sites – The basic capabilities required to use SharePoint sites to engage employees, partners and customers in en effective manner, both inside and outside the firewall.

Communities – The ability to easily access expertise and interact with other people in new and creative ways across the enterprise through both formal and informal networks.

Content – The facilities for the creation, review, publication and disposal of content while conforming to defined compliance rules, whether the content exists as traditional documents or as Web pages. SharePoint 2010’s content-management capabilities include document management, records management, and Web-content management.

Search – With more content existing online and involving the collaboration of multiple participants, it is critical that people can quickly and easily locate relevant content across SharePoint lists, sites and external systems and data sources, such as file shares, Web sites or line-of-business applications.

Insights – Information workers need the ability to not only rapidly deliver and share information that is critical to the success of the business but also to turn raw data into actionable conclusions and to drive business results through sharing data-driven analysis.

Composites – Business users of all roles need the ability to quickly create customized solutions without involving corporate IT in each request. At the same time, the IT staff needs the capability to empower business users to create these applications while ensuring the environment’s stability and availability.

1) The first example is a custom field type that you can add to any document library and that returns the main properties of any document by
clicking on it in a fast and user-friendly way. Thanks to the jQuery code embedded in the CAML of the custom field type, the properties are returned via an AJAX query that calls lists.asmx to get the properties. 
This example is the main topic of the video and is rebuilt from scratch.

2). The secund example will be available for download and is overviewed during the video. It's a custom SharePoint calendar where users can type locations in a textbox. All the matching events are highlighted within the calendar directly (they blink) and direct links to the events are shown above the input textbox. 

Again, same principle than for the first example (query to lists.asmx) but this time the jQuery code is isolated in a separate JS file and both the jquery javascript file and the custom one are included OnPreRender of the custom calendar control.

To watch this video, click here.

jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development (wikipedia article). It was created by John Resig and dual licensed under the MIT License and the GNU General Public License, jQuery is free and open source software.

Marc D. Anderson developed a jQuery library names "jQuery Library for SharePoint Web Services" which abstracts SharePoint's Web Services and makes them easier to use. It also includes functions which use the various Web Service operations to provide more useful (and cool) capabilities. It works entirely client side and requires no server install.

You can download it or you can read blog posts about this project(on Marc D. Anderson's blog)

• The hardware and software must meet or exceed the minimum system requirements to run the new version.
  This includes the requirement for 64-bit hardware and 64-bit versions of the operating system and Microsoft SQL Server. For more information about minimum requirements click here

• Office SharePoint Server 2007 must be updated to Service Pack 2
  Your environment must be updated to at least Service Pack 2 of Office SharePoint Server 2007 to run the upgrade process, either for an in-place or database attach upgrade.
  

Resolution

• Go to the windows directory and find the TEMP folder. (c:\windows\TEMP) Right click the TEMP folder and select the security tab.
• Click the add button for adding a new user. Write the name "network service". Give Read/Write rights and click OK.
• Go to the location c:\windows\system32\Logfiles. Write the name "network service". Give Read/Write rights and click OK.

• STS#0 Team Site
• STS#1 Blank Site
• STS#2 Document Workspace
• MPS#0 Basic Meeting Workspace
• MPS#1 Blank Meeting Workspace
• MPS#2 Decision Meeting Workspace
• MPS#3 Social Meeting Workspace
• MPS#4 Multipage Meeting Workspace
• WIKI#0 Wiki
• BLOG#0 Blog

You can use it on your code which creates subwebs programmatically.

SPContext.Current.Web.AllowUnsafeUpdates = true;
SPWebCollection webs = SPContext.Current.Web.Webs;
objWebs.Add("Sample Site", "Sample Site", "This is the Sample Site", 1033,"STS#0", true, false);
SPContext.Current.Web.AllowUnsafeUpdates = false;

Error : "Access is denied. Verify that either the Default Content Access Account has access to this repository, or add a crawl rule to crawl this repository. If the repository being crawled is a SharePoint repository, verify that the account you are using has "Full Read" permissions on the SharePoint Web Application being crawled. (The item was deleted because it was either not found or the crawler was denied access to it.)"

Solution :

• Click Start, click Run, type regedit, and then click OK.
• In Registry Editor, locate and then click the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
• Right-click Lsa, point to New, and then click DWORD Value.
• Type DisableLoopbackCheck, and then press ENTER.
• Right-click DisableLoopbackCheck, and then click Modify.
• In the Value data box, type 1, and then click OK.
• Quit Registry Editor, and then restart your computer.

Sometimes Office Sharepoint Server Search service is hanged it is showing in "starting" state there is no stop,start or restart option in services.msc console. You can restart your server, but problem still continue.

You can try the following stsadm commands to fix it.

stsadm -o osearch -action start 
stsadm -o osearch -action stop
net stop oSearch
net start oSearch

But sometimes problem still continue too, then try this command

psconfig -cmd services -install

Microsoft published model describes common ways to build and scale farm topologies by using Microsoft SharePoint Server 2010, including planning which servers to start services on.

You can download it as pdf, vsd or xps file.

Feature	SharePoint Foundation 2010	Search Server 2010 Express	Search Server 2010	SharePoint Server 2010	FAST Search Server 2010 for SharePoint
Basic search	ü	ü	ü	ü	ü
Visual Best Bets Keyword terms and synonyms defined by an administrator to enhance search results. For FAST Search Server 2010 for SharePoint only, a section of relevant information is displayed in addition to search results for a keyword term (for example, an image banner or HTML).		Limited	Limited	Limited	ü
Scopes Users can filter search results by using scopes.		ü	ü	ü	ü
Search enhancements based on user context Scopes Best Bets, visual Best Bets, and document promotions and demotions to a sub-group of employees.					ü
Custom properties Manage which properties are indexed and how these are treated in search results.		ü	ü	ü	ü
Property extraction Extracts key information (people names, locations, company names) from unstructured text to use as additional managed properties. (Limited: title, author, and date only.)		Limited	Limited	Limited	ü
Query federation Federates results from multiple search sources.		ü	ü	ü	ü
Query suggestions Provides help with query formulation based on what the user types.		ü	ü	ü	ü
Similar results Generates a new search based on the selected search result.					ü
Sort results on managed properties or rank profiles Sort results based on selected managed properties or by FAST Query Language (FQL) formula.					ü
Relevancy tuning by document or site promotions Promote selected documents or sites as highly relevant results for a keyword. Demote documents or sites to give lower rank. (Limited: promote documents for a given site, not query specific.)		Limited	Limited	Limited	ü
Shallow results refinement Refine results using metadata associated with the top results.		ü	ü	ü	ü
Deep results refinement Refine results using metadata associated with all results.					ü
Previewers Display inline previews of Word, PowerPoint, and Excel files.					ü
Windows 7 federation Enterprise search results are available in Windows desktop search.		ü	ü	ü	ü
People search Search users to find people by name or expertise.				ü	ü
Social search Relevancy is improved by how people interact and relate with content by factoring in social tagging and the relationship of people to content and other people.				ü	ü
Taxonomy integration Takes advantage of user generated tags. Managed taxonomy influences search rankings and experience.				ü	ü
Multi-tenant hosting Data partitioning of crawled data based on tenants.				ü
Rich Web indexing support Indexing of wide variety of Web content, including Flash.					ü

More details there http://technet.microsoft.com/en-au/sharepoint/ee518643.aspx

Access Services : Enables users to view, edit, and interact with Microsoft Access databases in a Web browser.

Application Registry Service : Enables users to search and collaborate around business data.

Business Connectivity Services : Enables structured data from line-of-business applications, such as SAP and Siebel systems, to be integrated into SharePoint Server "14".

Excel Services : Enables users to view and interact with Microsoft Excel spreadsheets in a Web browser.

Lotus Notes Connector : Enables users to search data on a Lotus Notes server.

Managed Metadata Service : Enables teams or departments to manage their own taxonomy, hierarchies, keywords, and social tagging infrastructure, so that, for example, taxonomies and content types can be shared across the organization (across site collections and web applications)

People : Enables users to search for people within their organization to, for example, find skills, memberships within enterprise communities, and shared interests.

Performance Point Service : Balanced scorecard and dynamic dashboard tool that allows power users/IT to create dynamic and highly interactive dashboards that display strategy to operations. Performance Point Services allows you to combine multiple data sources, and objects providing a single view of the business.

Search Service Application : Enables user to index content, gather information, and perform search queries.

Secure Store Service : Enables users to store data securely, and associate it to a specific identity or group of identities.

State Service : Enables users to temporarily store user session data for SharePoint Server "14" components.

Usage and Health Data Collection : Collects farm-wide usage and health data, so that users can view usage and health reports.

Visio Graphics Service : Enables users to view and refresh published Visio diagrams.

Word Conversion Service Application : Enables users to perform automated bulk document conversions.

References : http://sharepoint-sandbox.com

This is a password that is used to encrypt all communications across the farm. The farm passphrase is required to be input anytime you wish to remove a server from the SharePoint farm or add a server to the farm. The password should be recorded and kept in a safe place and can be changed through Windows PowerShell by the administrator. 

Note that you will need to patch SQL Server with the latest cumulative updates for SQL Server 2008 or SQL Server 2005 depending on what version you will be running.  These are as follows :

• SQL Server 2005 SP2 CU3 http://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=23806
• SQL Server 2008 SP1 CU2 http://support.microsoft.com/kb/970315
• WCF Hotfix for Windows (KB976462) – To be installed after the SharePoint 2010 Preparation Tool has been run which installs the core prerequisites. http://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=23806

Note that Windows 2008 R2, SharePoint 2010 and Exchange 2010 are 64 bit only

SharePoint Solution Exporter is a tool you can save your Sharepoint site feature or global deployed solution easy. For more information click here to access Code Plex Project Page . Thanks for Kemal Karadag

Training kit that provides developers with collateral to get started quickly developing for Office 2010 Beta. The Office 2010 Beta Developer Training Kit includes a comprehensive set of technical content including hands-on labs, presentations, source code, and instructor-led videos, that are designed to help you learn how to develop for Office 2010 and SharePoint 2010. You can download it via this link

In Sharepoint 2010 Search Settings>Content Sources screen you can see new types of Content Sources that allows you to define different content sources.

In Sharepoint 2010 two new features for creating view added. In create or modify view screen you can see "Inline Editing" and "Tabular View" sections.

You can't install SharePoint 2010 on Microsoft Virtual PC as it needs 64 bit Platform. As of now, Microsoft Virtual PC don’t support 64 bit operating system guest.

ASP.NET sites after a long period of inactivity, the site comes up very slowly during the first access. However, subsequent accesses, by same or other users, are fast. More than people know that is an IIS setting issue (goes to sleep!). However, the slowness is not IIS.

The first request to an ASP.NET application is slow. The reason you see this repeatedly is because IIS (which I assume you are using) will idle timeout when the configured time is reached If you don't want this behavior, and you do not need IIS to shut down the application pool, you can disable this.
But there is nothing in IIS you can do to solve the actual problem that First request to an ASP.NET application is slow. SpSiteWakeUp is an opensource tool allow wake up your SharePoint sites and sub site. You can use Windows Service version to automate this progress.

For more information click here to access Code Plex Project Page or Kemal Karadag's personal blog