I've belatedly discovered écrire pour le web, a blog produced, I believe, in Belgium. Even with my rudimentary French I can see it's a good site, and I've put a link to it in the Webwriting Resources list. (It's way down at the bottom of the list, thanks to its lower-case text.)
This raises another point: staying up to date. If you're running a site that deals with webwriting (at least in part), please get in touch. It's time to do a serious overhaul of the links and resources available here. Non-English sites especially welcome!