anti-spam checks for web content

[Jacqui Caren]

I have a client who hosts adverts but wants to reject ads that
are related to sites known to use spamming techniques.

So, he is looking to scan the content and if it includes
copy or links related to know spammers/scammers he will
be told before he hosts it.

To the question, is there any nice perl code that will
scan html content and score it based upon "spamminess"

Jacqui

ps. I am open to non perl code, web services etc.