Morning Edition from NPR

Microsoft is committing $300 million to the venture with Barnes & Noble. They are working to create a new subsidiary of the bookseller. The two companies are hoping to energize sales of the Nook tablet.

Clive Palmer says he wants to build Titanic II to sale from London to New York. Like the builder of the original, Palmer says, "It is going to be designed so it won't sink."

Peggy McAlpine wasn't happy when she lost her world record. The Scottish woman was 100 when she became the oldest person to paraglide. That title was recently taken away by an American woman. So at age 104, McAlpine took the the skies again and regained the record.

Tuesday marks one year from the day President Obama announced to the nation that Osama bin Laden had been killed. To underline the significance of the anniversary, the administration sent its counter-terrorism expert out on the airwaves Sunday. It also launched a controversial campaign ad about the raid against the al-Qaida leader.

China is clamping down on social media as it grapples with a crisis over the escape of a high-profile dissident, apparently to U.S. protection. The case presents new difficulties for a Chinese leadership already struggling to deal with the scandalous downfall of a powerful politician, and it complicates U.S. Secretary of State Hillary Clinton's visit to Beijing this week.

Yet China's use of social media in dealing with these two recent crises has been a study in contrasts.