China criticisms and 30M followers lead to Weibo ban for ex-Google China head

What does a massive social network following and criticizing China's government from within get you? For Kai-fu Lee, the former head of Google in China, it was a three-day ban social networking.

Twitter acquires blogging platform Posterous

Posterous, a blogging platform that embodies Tumblr’s simplicity, if not its stylishness, announced today it has been acquired by microblogging giant Twitter.

Posterous announced the acquisition Monday in a blog post. For now, Posterous will remain the same and the …

Collaboration app MightyTeams brings productivity to the iPad (exclusive)

New York-based startup MightyMeeting has its sights on boosting mobile productivity in the enterprise. In keeping with the growing trend of using tablets to do work, MightyMeeting is unveiling a collaboration app called MightyTeams for the iPad and Android tablets.…

Billionaire Saudi Prince Alwaleed invests $300M in Twitter (update)

Hot on the heels of Twitter’s $800 million sixth round of funding, Saudi investor Prince Alwaleed bin Talal and his firm Kingdom Holding have announced a $300 million investment in Twitter.

But the investment is actually a secondary deal, meaning …

iPhone and 3 days of microblogging reunite mother and daughter after 5 years

Here’s a quick break from all-things-American on July 4th:  Apple just sent us a tip about a shoe shiner in China reunited with her daughter after five years, thanks to an iPhone and Chinese microblogging site Weibo.

A 71-year-old shoe …

Is Twitter worth $10 billion?

Famed startup investor John Doerr recently said that turning down a chance to put money in Twitter, the fast-growing, San Francisco-based microblogging company, was one of his biggest mistakes.

He may be set to correct that mistake, according to Bloomberg, …