Well, this seems to be brand new, http://searchmarketing.yahoo.com/. Looks like they renamed from Overture's Precision Match to Yahoo!'s Sponsored Search. Well, actually a lot of the products were renamed. I did not look closely enough to see other changes, but I bet there are a lot.
Found by way of a new thread at Search Engine Watch Forums.
Update: Looks like they updated their Overture ads to Yahoo! Search Marketing Ads, see:
Overture's Web site was turned over this morning, http://www.overture.com/.