I just came across a new kind of spam, very cleverly made:
It's a clever ploy, posting praise with hidden images. Only it was a bit off in my case, but if I hadn't checked the source, I'd never have known that I was in fact in the advertising business.
This particular post actually slipped through Mollom, so beware, my Mollom using friends – I've submitted this one to Mollom as spam, but beware what might have gotten through the net.
Mollom is generally a brilliant service (I've had 5922 blocked spam attempts the last 348 days), but there's always going to be a small amount of false positives. Spam filterning is no replacement for vigilance :)