One of the latest social media sites that helps you find out what's currently trending among your friends is Utopic.
Utopic is fairly different from sites such as Peer Index and AnyBodyOutThere because it syncs up to your Facebook, YouTube, and Twitter accounts -- heck you can even have all three going at once! So rather than finding trending topics from everyone in the web, there's more focus on people in your social media accounts. The website lets you view your friends post the latest music, videos, and photos in real time via split windows. It's similar to the Tweetdeck for Twitter in which you get to see everything in one go (even the interface is similar), but Utopic will let you do so much more.
The site is still in its early beta phase so it'll be interesting to see how Utopic evolves over time.