About the VP8 Patent Cross-license
The VP8 Cross-License Agreement helps create a royalty-free ecosystem for VP8 and allows the web community to further support the WebM Project. Google, Matroska and the Xiph.Org Foundation make the various components of WebM openly available on royalty-free terms. By participating in the VP8 Cross-License, member organizations can receive additional rights from a number of IP owners and other licensees for additional assurance; members likewise agree to license patents they may have that are essential to VP8 to other participants in the cross-license. We encourage you to fully participate in the ecosystem by signing up for the VP8 Patent Cross-License Agreement.