Affiliate Links in Search Engine Results
Here's a reality check: If a search engine just started dropping those codes in their results, they'd be crucified. Crucified by the technical press, the SEOs, and a bunch of bloggers. Imagine the conspiracy theories!
Definately go read the rest of Jeremy's post, threadlinked above, it's quite funny :)
The question of disclosure and seperation of "editorial" from advertising is raised in the context of search results also which has been a bit of a thorny issue of late. Certainly food for thought, as we've debated aff. links and SERPS for years now..
Do you think they could get away with it under the right conditions?