AP Puts Up Ridiculous Blogger Toll Booth

It’s one of the richest appraisals for a Silicon Valley startup since Microsoft Corp. paid $240 million for 1.6 percent of Facebook Inc. late last year. That deal valued Palo Alto-based Facebook and its online hangout at $15 billion.

The Facebook financing in turn helped several other startups that promote online socializing to promote themselves.

Ning Inc. and Slide Inc. wrangled implied valuations ranging between $500 million and $560 million when investors poured more money into them earlier this year, while RockYou was valued between $200 million and $300 million in a deal completed last week.