A couple months ago, I wrote a blog entry on Web 2.0 in the Enterprise. I'm proud to say that we recently released a whitepaper titled Bringing Web 2.0 to the Enterprise with the 2007 Office System that I co-authored. You can find it at http://www.microsoft.com/downloads/details.aspx?FamilyId=8B48BD31-F043-4AB4-96EB-C6E958FE4EC9. Check it out!