Danny wrote Yahoo Surveys Search Rewards Idea where he covers a News.com article showing how a group of Yahoo! Mail users were offered "10 different potential reward options" to take a Yahoo! search survey. Kinda funny, I told them they should do this at last years SES San Jose conference - that they don't have to necessarily pay money to get answers. I am sure it wasn't my influence, since it did take almost a year to implement.
What is funny is the diverse feedback on this at WebmasterWorld.
An interesting strategy, and one that I'd never thought might be adopted.
The beginning of the end for Y! Search...
Looks like they're serious about trying to put a dent into AdWords/AdSense and this is just another piece of the puzzle.