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We have been approached to set up a forum for a small special interest group. Usual facilities needed, just like this forum I guess, commercially just a few banner ads and maybe captchas or similar to keep the spam at bay.

Volume wise I cant see it ever growing to more than 100-200 members (this is a real niche area) but those users maye generate a fair few posts.

Is there a 'gmail of the forum world' i have missed - i dont really want to install software on a shared / vps / dedi box myself, i'd rather just pay £x a month but know its secure and recommended.

thanks in advance, as ever!!