http://sharepointgeorge.com/2010/configuring-incoming-email-sharepoint-2010/
http://www.sharepointjoel.com/Lists/Posts/Post.aspx?ID=343
http://www.ehow.com/how_6856676_enable-email-server-sharepoint.html
http://blogs.msdn.com/b/ecm/archive/2010/06/14/email-management-and-sharepoint.aspx

Decatec's Sharepoint Email solution

http://msdn.microsoft.com/en-us/library/dd633678(v=EXCHG.80).aspx

I'll be fun doing advanced email integration with Sharepoint for Records Management.

http://sharepointgeorge.com/2010/configuring-incoming-email-sharepoint-2010/