O'Reilly Radar > Search Engine Spam?:

"I just read Phil Ringnalda's comments claiming search engine spam by advertisers on O'Reilly sites. This was a bit of a shock to me. Since then, I've spent a bunch of time talking to people about Phil's complaints, looking into what we're doing and what I think we should do. It's clearly a complicated issue, and my opinion has changed a couple of times as I've gotten more information. Apologies for the length of this entry. I'm still in fact-finding mode, but wanted to share my process rather than waiting till I have a complete solution."