Update – 7/4/11:
According to Mashable, Google’s agreement with Twitter that gave the search engine full access to public Twitter feeds has expired. Because of this development, Google has taken down their realtime search feature.
Just Updated for November: Find Out How Many People Use 1,000 of Your Favorite Social Networks, Apps and Digital Services
Original Post- 2/17/11:
Google just made search a little more personal by integrating your social accounts into your results. At first blush, it seems pretty cool.
Wired has a pretty good rundown of the social search changes. So, what do you think? Useful?