celgins - 5:17 pm on Mar 20, 2007 (gmt 0)

In Google's version of CPA, publishers aren't affiliates of the advertisers; they're simply being paid for whatever the advertiser deems a conversion (e.g., transactions, leads, or even time on site).

Publishers aren't affiliates of the advertisers, but are still subjected to the lead, transaction, and sale amounts determined by the advertisers.

Sounds more and more like classic CPA ads on affiliate networks.