Sharepoint downloads.

SharePoint. $375.

SharePoint 2010 resources for developers

http://sharepoint.microsoft.com/en-us/resources/Pages/Developer-Training-Guide.aspx

SharePoint 2010 Resources for IT Professionals

http://sharepoint.microsoft.com/en-us/resources/Pages/IT-Pro-Training-Guide.aspx

SharePoint 2010 Resources for End Users

http://sharepoint.microsoft.com/en-us/resources/Pages/End-User-Training-Guide.aspx

Why Use SharePoint 2010?

http://sharepoint.microsoft.com/en-us/product/benefits/Pages/default.aspx

SharePoint Capabilities

http://www.sharepointdotnet.com/2011/11/sharepoint-2010-features.html

http://sharepoint.microsoft.com/en-us/product/capabilities/Pages/default.aspx

What are the different Editions of SharePoint 2010?

http://www.sharepointdotnet.com/2011/12/what-are-different-editions-of.html