Google announces open source video format Summary: New royalty-free WebM will be supported by Mozilla and Opera May 24, 2010 -- 10:26 GMT (03:26 PDT) Loading... Please wait. http://i.bnet.com/video/10z0519b_GoogleIO_WebM_full_low_ST.m4v Topics: Software, Apps, Browser Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.