Peter Kafka

Recent Posts by Peter Kafka

$25 Million More for Yammer, the Twitter for Work

Chatting at work is serious business for Yammer. The two-year-old start-up has raised a $25 million funding round led by U.S. Venture Partners, complementing the $15 million it has already raised to date. Yammer offers a social network for enterprise customers, and has plenty of competition from the likes of Salesforce’s Chatter, Socialcast, etc.


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The problem with the Billionaire Savior phase of the newspaper collapse has always been that billionaires don’t tend to like the kind of authority-questioning journalism that upsets the status quo.

— Ryan Chittum, writing in the Columbia Journalism Review about the promise of Pierre Omidyar’s new media venture with Glenn Greenwald