Yahoo Referrals Found in Google AdWords Placement Reports

An updated Search Engine Watch Forums thread reports one respected user finding referrals from Yahoo Search in their new Google Placement Reports.

Placement reports, are new reports from Google, that show AdWords advertisers who opt in the content network, where there ads are being displayed.

SEW Forums moderator, Discovery, said, he spotted Yahoo within his placement reports:

Started getting this in my placement report this past week

search.yahoo.com/search...

Only 12 clicks this month at a mid level CPC... no conversions!

This begs the question, is Yahoo using Google AdSense to supplemental their inventory?

Forum discussion at Search Engine Watch Forums.