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Henri Sivonen

My official W3C presence is membership in the new HTML WG as a representative of the Mozilla Foundation. I subscribe to some open-to-all W3C lists, but I mostly lurk. I've been on the WHATWG list (active, too) since July 2004. Previously, I participated in the Atom WG (on the feed format side, not on the protocol side) of the IETF.

I am developing an HTML5 conformance checker (not complete, yet). I have also written about it.