In response to: Lotus Connections Easily Trumps Other VendorsI have to agree that Lotus Connections is definitely "people centered and not document centered". I currently use Atlassian Confluence. Even though they have many "social networking" plug-ins (e.g. Bubbles), it is no match to LC. Lotus took its time, but has definitely produced a Enterprise 2.0 platform for Social Networking.
I keep track of various E2.0 technologies, and LC is the most full-featured suite I have seen :)