How is it possible that when you have a domain name, page titles, internal linkage, external linkage, page content, and search referal strings that all HEAVILY are focused around a specific state or region that Yahoo! shows many regionally targeted ads, but typically none that are relevant for the region your site targets?
Imagine a site that ranked well for everything related to Colorado mortgage but nearly exclusively showed credit card ads or mortgage ads for non-Colorado states. How are people going to click on those ads? How are those leads valuable to businesses?
It looks like Yahoo! was waiting for MSN to dump them before rolling out their new PPC product. MSN dumped them last week, and today Yahoo! is already launching their shiny new PPC system.
The new system is going to be rolled out in stages. This stage is mostly about improving the underlying data and analytics platform. On the 17th of May they intend to announce the new PPC relevancy algorithm. In the third quarter they also plan on integrating analytics that will allow you to buy and track ads on Google or MSN as well.
Already mentioned everywhere else, but I think it is worth noting that Andrei Broder Joined Yahoo!. Google has been getting the lion's share of hires of big web names (like Vint Cerf), so it is good to see Yahoo! pick up one of them.
Gary Price also added links to a number of research papers Andrei Broder contributed to.
I generally haven't watched Yahoo closely, but since the update in late July, where many inside pages dropped like rocks, I've been following some selected niche searches. My thought at the time was that there was some sort of "filtering" in place (and I'm probably using the word inaccurately), much like there was after Google's infamous Florida update.
What seemed to affect some searches and some sites didn't seem to affect others... there was talk of over-optimization penalties... and results just didn't feel right. After Florida, I felt that Google would have to fix it, and eventually they did. I've felt that about Yahoo since the July update, but it hasn't happened yet.
The Yahoo serps are Florida-like in one respect that I haven't seen discussed... nonsense exclusion strings in the search query seem to return to search to an approximation of pre-July normalcy. Add -asdf to a search a bunch of times and you'll see what I mean.
Google also slightly increased their number (from 8,058,044,651 to 8,168,684,336), which may be an attempt to further refute / undermine Yahoo!'s claim. Gary says Google gave them the new number before Yahoo! did, which makes me wonder if Google has a few people who know the pulse on Yahoo!
Google always used index size as free marketing it's whole way up, and now that someone is ahead they simply said the figure is useless and everyone agrees. Amazing PR.