Web Parts

ASP.NET Web part controls are an integrated set of controls that enables end users to organize the content, appearance and behavior of the web page.

Links

• Here you can start with web part development - Web part development
• Here is an MSDN white paper about how to do web part development - Beginning Web parts
• Here is another MSDN white paper about web part development - Web parts 

Samples

• Sample web parts are available here - Web parts samples
• Some samples are available here also - Web parts samples

Videos

• A video about web part development - Web parts video
• ASP.NET video tutorial about web part development - ASP.NET Web Parts video tutorial