These resources provide links to specific sites for more information. Be sure to sign up for the Microsoft newsletters related to the applications you use most often.
Microsoft InfoPath: www.microsoft.com/office/preview/infopath
Microsoft OneNote: www.microsoft.com/office/preview/onenote
Microsoft SharePoint Portal Server: www.microsoft.com/sharepoint/
Information Rights Management: www.microsoft.com/office/preview/editions/technologies/irm.asp
Microsoft Office Newsletters: www.microsoft.com/office/using/newsletter.asp
Microsoft Newsgroups: http://communities.microsoft.com/newsgroups/default.asp?icp=Prod_officebeta & slcid=us