We are just starting to organize ourselves (please message or email me if you want to get added to the mailing list for that) but since it is a wiki site there’s no reason folks can’t get started adding entries for webcomics now.
The to-be-named soon wiki for webcomics is at comixpedia.org and it’s alive! Alive, I say!!
If you add an article please check the wikipedia.org first to see if any work has already been done – if it has it should be kosher to copy and paste the wikipedia article into the webcomic wiki. That doesn’t mean you can’t make further changes, but we’re going to make efforts to keep synced with the wikipedia where a topic appears in both places.