This I think is open to all Yahoo Users?(but settings are only savable by Yahoo members?) and Has been launched with no fanfare
My attention was drawn to it on an article Yahoo Debuts Search Pad
and quotes

quote:

Yahoo Search Pad helps users by attempting to determine the purpose of their search. Indicators such as time spent on a site and other search patterns help show whether a user is attempting to navigate a site, find specific information

Sounded Like Googles Searchwiki So I looked in on Yahoo's Search Page Not the Home Page search page! but the Results Page
at first glance No Change...But up in the top right Corner there is a Green Shield icon with a white tick and a link labeled SearchScanBETA On

and if you see what I saw flagged on the Page you'll never turn it off
Unlike Google which flashed up a warning for a Dodgy Site after clicking the link. Yahoo's McAfee Version Red flags the Link on the Search page and gives the Nature of the Issue on the Site.Am Marking this 10/10
There is a lot more to discover when you click the Link ( Highly Recommend you inspect the menu beyond)
Had no time to test out the Security settings here. Highlight for Me? The Enhanced Results ...Customise the appearance of search results link takes you to this List Select from the search modules gallery Its a Big list to view Be Warned! Still in Beta!
I think Yahoo members will like this.
PS There is a "Reset to default preferences " link (at the Page foot) if it gets out of control
NOTE: The Last link may not work right direct from AP as its keyed to the UK site

And there's more ...and a promise of More To come Later Its a Beta(Work in Progress) Don't Forget!

I said I have Not made a test of what it is capable of in everyday use. Been concentrating on the Security side of things.
Here is a Peek inside...Yahoo have made a Video of what it does
It blows Google clear out of the water!
Ideal for a researcher or Somebody collecting information on a subject
Yahoo have no "own brand" Web page history recording program like Google Web History I wonder if that is coming along later to supplement this Feature?