WHATWG maintains several standards that are core to the web platform.
- Standards: https://spec.whatwg.org/
- GitHub: https://github.com/whatwg
- IRC: Freenode #whatwg
- Twitter: https://twitter.com/whatwg
Everyone is welcome to contribute to the WHATWG.
Mozilla Standards GitHub organization
If you want to create a pull request and have a contractual relationship with Mozilla, please ask Anne van Kesteren to nominate you to the Mozilla Standards GitHub organization and make your membership thereof public to ensure your pull request will be properly attributed as a Mozilla contribution. (Do not worry, you can also follow a proud tradition of creating the pull request first and sorting this out afterwards.)
(Note that despite the more generic name this organization is used exclusively for the WHATWG at the moment.)
Mozilla is a WHATWG Steering Group Member and is represented by Anne van Kesteren. It was formerly represented by David Baron.