W3C announced , which promises to be a valuable new resource for web developers of all levels. Imagine a single site that you can depend on for up-to-date, accurate, and browser and device neutral answers and advice for both simple and complex questions. It is brand new and “alpha” but already useful. Below is info from their announcement and a short video. For those of us that prefer textual info see this blog post from Doug Schepers: http://blog.webplatform.org/2012/10/one-small-step/
W3C, in collaboration with Adobe, Facebook, Google, HP, Microsoft, Mozilla, Nokia, Opera, and others, announced today the alpha release of Web Platform Docs (docs.webplatform.org). This is a new community-driven site that aims to become a comprehensive and authoritative source for web developer documentation. With Web Platform Docs, web professionals will save time and resources by consulting with confidence a single site for current, cross-browser and cross-device coding best practices.