J.M. : A new thing in America, that has been around eight years, is company like Match.Com, which is the biggest online dating service in America.

TelePresence is costly, but Cisco says it offers a videoconferencing desktop solution (the fruits of its 2009 acquisition of Tandberg) starting at about $300.

WHENEVER the founders of Twitter, a social-networking service, have been asked about how much revenue they expect to generate from their creation, they have politely deflected the question.