I try to save blog posts for after hours, but these links are worthy of notice. The parent Sharepoint blog is certainly worth a subscription for those of us considering its usage.
Microsoft and Facebook expand partnership
Microsoft Sharepoint Usage for Social Networking and "Communities of Practice"
Say whatever you'd like about Microsoft, but they will not remain a sleeping giant for long. The development teams are far from asleep. Apple appears content on grabbing short term revenue here and there. Sun hangs their hat on what is left of Java. Microsoft is very in touch with Web2.0. I love the way Photo Gallery now lets you upload directly to Flickr.