That is awesome! I've had the idea for the past few years of making a social search engine, where the only results are pages tagged by people in your "friends"

That is awesome! I've had the idea for the past few years of making a social search engine, where the only results are pages tagged by people in your "friends" list and several degrees outwards from that. I never had any interest in actually building the idea, so it's amazing to see something similar hit the market.