VP8 (WebM) submitted to the IETF
Thursday, January 20, 2011 3:52:17 PM
VP8 Data Format and Decoding Guide
By J. Bankoski, P. Wilkins, Y. Xu of Google, Inc.
Naturally, Google's irrevocable, royalty-free license still applies.
If you are not familiar with the difference between VP8 and WebM, VP8 is the actual video compression format, while WebM is a multimedia container format based on Matroska, which consists of VP8 for video, Vorbis for audio.
It's important to note that this doesn't necessarily make VP8 a standard (at least yet), since informational IETF documents can basically be "anything".