Flock browser just revamped their user interface.The new beta version is based on Chromium 7 and got several new changes including improved social integration similar to Rockmelt browser.
Flock beta now supports Facebook,Twitter,linked in, YouTube and Flicker ,the biggest social networking and media sharing sites.
Features that I found useful in new social Flock
I am really happy with the home page on flock, It got a Google search box in the middle of the page and text links to your most recently visited websites.Another thing I found interesting is the new social sidebar,It will show a stream of your friends social updates.
Wait and see for a stable release for all platforms including Mac and Linux.It looks like in stable release we will get much more.Download and try Flock beta version now.