
A long-distance calling company called Talkbook has filed a legal challenge against Facebook for alleged fraud in the way the social network trademarked its own name.

A long-distance calling company called Talkbook has filed a legal challenge against Facebook for alleged fraud in the way the social network trademarked its own name.

Startup Payvment has gotten $6 million in funding, a transaction led by Sierra Ventures and with participation by BlueRun Ventures.