I'd love to join as I do update my site by posting at least a new image every two weeks in my gallery sections, but my changelog is updated every two months (y'know, otherwise it'd be a flood xD)
Do I still technically fit the description of frequently updated site? I always put the date on my drawings' descriptions whenever I upload them, so I know there's a way to verify my activity, I just imagine it's tedious going through my menu and check my sections if you are going to do a monthly rundown of who's respecting the rules in your webring.
(I know this could be resolved with RSS, but I have it planned for my big update and that's coming after Halloween at least...)