Aiming to expand beyond movies and baseball, set-top box maker Roku is adding 10 new content channels ranging from social networking to music and podcasts. Roku, which makes a small, wireless device that can stream content from the Web direct to any TV screen, is expanding from 3 channels to 13, as expected. Channels for Blip.tv, Facebook Photos, Flickr, FrameChannel, Mediafly, MobileTribe, Motionbox, Pandora, Revision3, and TWiT will join the current lineup of Netflix, Amazon Video On Demand, and, more recently, MLB.TV. All of them will be available in the newly christened Roku Channel Store. More here.