I heard about RockMelt via a post from Daring Fireball lamenting that this took the clean UI of Chrome and cluttered it up. However, if you are looking for a "everything in one place" browser for your social "stuff" (say, you're at work and want to keep an eye on Facebook, Twitter, etc while browsing and without having 3 or 4 apps running to keep things on the DL...), it's got potential. This is similar to Flock, but seems to put more emphasis on sharing instead of just consuming. I think :)

Sadly RockMelt isn't available yet, you have to connect them to your Facebook account to reserve a spot in the beta. If you want some more in depth stuff, check up the

Scobleizer interview where Robert goes in depth with the founders.