Plaxo is an internet company that works and specializes in important problems in the consumer Web space, pioneering the “smart address book.
Plaxo, focused on delivering on the vision of a truly smart, socially-aware, and pervasive address book; the Social Technologies Group (STG), created after the acquisition to lead address book, identity, and social strategies for all of Comcast; and Tunerfish , a new social entertainment internal startup, incubated in STG.

Founders:  Cameron Ring, J. Todd Masonis, Sean Parker