html5lib now has a discussion group. We're spamming that now instead of implementors@whatwg.org.
html5lib, thanks to Sam Ruby, recently got a module for liberal XML parsing. This does exactly what you think it does.
www-style that I joined the CSS WG to work on the Cascading Style Sheets Object Model which will obsolete the two chapters of DOM Level 2 Style and standardize some layout goodness from DOM Level 0 at the W3C.
This was supposed to be posted on Tuesday.