http://news.bbc.co.uk/1/hi/technology/5140066.stm#startcontent Pretty odd to see in the mainstream press I thought - especially talking about the multi-million dollar industry of spamming Google. I wouldn't of expected Google to say something like that. Pete
It does seem odd to state it so baldly, but it's not as though it's any kind of secret. Maybe he just meant to emphasise the scale of the problems they face. It's not as though MSN and Yahoo don't face the same challenges, after all.
Google is the cause of the majority of the SPAM on the internet. Why bring out a feature which blocks websites from ranking for competitive keywords to stop spammers creating websites and earning a quick buck, and then launch Adsense so people create spammy sites to earn an income from Google.