Plaxo

Plaxo takes a lot of grief for its aggressive marketing strategy early in its existence, but it has turned into a quality company. Plaxo Pulse was Friendfeed before there was Friendfeed - I'm convinced the only reason it hasn't taken off is because it didn't have the ex Googler mystique. Pretty much everybody has an account on Plaxo, making it an extremely useful service for keeping track of contacts. I wonder if we are going to see a deeper Comcast integration now that Plaxo is under that umbrella.