Only 420 people will be allowed in at first.

It's called 'enterprise tech,' and it's growing: Microsoft, Google, IBM and maybe now Facebook are involved.

Belieb it or not, J-Biebs is a dynamite venture capitalist with a solid record of investment.

Commentator Ben Casnocha says our ever-expanding social networks require a whole new skill.

For a lot of us who first got online in the 1990s, Yahoo! was a pretty special place. But that was a while ago and Yahoo! has since gone through numerous periods of tumult. What's next for the company? Plus, social network fans shop differently.

Despite pressure to show uses ads and make hay from their personal data, CaringBridge refuses. They're a special case, but are there lessons here for other social networks?