Facebook Helps Social Start-Ups Gain Users

The only thing more challenging than deciphering the names of all the social-minded Web sites battling for attention at the South by Southwest technology conference here — Brizzly, Vicarious.ly, Stalqer, Quora and so forth — would be the chore of signing up for each one individually. But a growing number of start-up companies are getting around this problem by, in essence, outsourcing the sign-up process. They are making use of a Facebook service that lets users log into new sites using their Facebook credentials. The free service, Facebook Connect, can help nascent Web services recruit a healthy crowd of users in a hurry, and help the users find their friends on those sites. At the same time, the service reinforces Facebook’s role as the central hub of the social networking world.