This is interesting. It seems like a very simplified version of what Socedo (http://www.socedo.com/) is trying to do.
They are generating actionable sales leads primarily for enterprise business. But I used the trial just as an individual, and that was also sort of fun and more useful than I would've expected!
Another one that I only know about because a relative of mine works there is http://kitewheel.com/ . I think it's designed and priced for large corporations, though.
They are generating actionable sales leads primarily for enterprise business. But I used the trial just as an individual, and that was also sort of fun and more useful than I would've expected!