Part of our vision for Social Bookmarks it to use "social feeds" (i.e., feeds generated by content bookmarked by customers) to enable members of the community to publish useful resources directly to our sites.

I'm happy to say that we have two great early examples how this would work on MSDN:

Popular Social Bookmarks feed on VB Developer Center (bookmarks tagged "visual basic")

Popular Social Bookmarks feed on VC# Developer Center (bookmarks tagged "csharp" or "c#")

Just the beginning, really.