I have a slightly different manifestation of the same problem. I have a google alert setup for the name of my website (to see when people write stuff about it).

I have a slightly different manifestation of the same problem. I have a google alert setup for the name of my website (to see when people write stuff about it). Over half of the notices that I get are from spam/malicious sites who copy a sentence or two and make a spammy page. I would have thought that google would be filtering this spam out.....