Google is expanding what they include in your social search results based upon sites in your connected sites tab in Google Buzz. Unfortunately for me it won’t pull in my Twitter social graph because I haven’t enabled Twitter in Buzz. Most Buzzers aren’t fond of other users pulling their tweets into buzz as they think it junks up the stream.
we’ll continue to improve social search using links that appear in Google profiles. The changes are rolling out now and should be fully deployed by the end of the week. As always, you can click “more search tools” and select “social” to see more results from your network.