News bites: Yahoo's Levinsohn quits

Top Yahoo excecutive Ross Levinsohn, who lost the CEO race to Marissa Mayer, has left the company, AllThingsD reports.

Twitter blocked a journalist who was critical of NBC, The New York Times writes.

CNN explains how Google and Facebook are channeling millions of dollars to nonprofits like the Electronic Frontier Foundation and the Center for Democracy and Technology.

The jury has been selected for the high-stakes patent trial between Apple and Samsung, Reuters reports.

Apple is expected to release the new iPhone on Sept. 12, according to Bloomberg.