It's good to know that many people think the survey is legit.
The reason I posted this was to confirm that others had been recieving similar requests.
TooMuch, I wouldn't dream of giving my YPN user id or password on any site, other than Yahoo.com with SSL encryption.
Although I felt that the survey was most likely initiated by Yahoo, I couldn't rule out the fact that someone had made a malicious program to hunt the net for sites with YPN ads and send them phony emails. And by clicking the link, I'd be suscribing myself to 1000s of spam lists, or worse, jeapordizing my YPN account.
You might call me paranoid, but as the saying goes, "Better safe than sorry!". Especially when it comes to stuff like my income.
Anyway, I'll probably take the survey now. Thanks guys! :D