China’s 400 million or so Internet users will soon be able to enjoy a new online video service. Baidu, the country’s top search provider, has announced plans to create a new video-on-demand website

Think you’re such a social media expert that you could tweet for a living?

Oh man, just another reason to be hyper-aware of what you say while on TV in this Internet age: Last night, MSNBC’s Chris Matthews awkwardly tried to compliment President Obama and the country at large following the State of the Union by saying, “I forgot he was black tonight for an hour.” Naturally a Twitter backlash ensued, and the video is now all over the ‘net like white on rice. Chris Matthews is no stranger to on-air blunders — remember that whole Erin Burnett thing? — but this one appears to have been a doozy.

It’s been less than a week since Bill Gates joined Twitter , but the Microsoft founder has already accumulated more than 300,000 followers and used the platform to launch a new site – Gates Notes. Today, Gates is using his new outlet to promote his second annual letter , which discusses the many philanthropic issues that he’s involved in through the Gates Foundation. This chart provides an overview: He also talked about Twitter and a range of other technology and world issues on Good Morning America

U.S. Secretary of State Hillary Clinton’s promised speech on Internet freedom took place this morning. Clinton called for China to “conduct a thorough review of the cyber intrusions” that Google implied were conducted by the Chinese government against human rights activists

Both the social media world and the music world have been buzzing about the latest music video from pop rock band OK Go for their song “This Too Shall Pass.” Recently, Mashable sat down with frontman Damian Kulash to talk about viral vids, sharing content and the changing face of the Internet.