Yahoo yesterday surprise-launched a public beta for a new personalized search site that can be plugged into the recently updated My Yahoo page.

My Yahoo Search allows Yahoo account holders to save, annotate, block and share the results of their searches.
These options appear below each result, alongside the now-familiar "Add To My Yahoo" & "View As XML" links that are included on any result with an rss feed.

I think it's a cool addition to Yahoo as an idea; Yahoo have millions of users, and they are in the best position to open up the idea of a personal web to non- tech users who were probably nonplussed by the recent launch of a9.

a9 is very feature heavy, so much so that I think people could easily become overwhelmed by all the features because it's very different in look and feel to Google.

The My Yahoo Search interface is very similar to the default search.yahoo.com; a smart move to gradually introduce the features, rather than force them too soon.
Ask Jeeves are also trying this gradual approach with their new My Jeeves site.

One point I read about My Yahoo Search was that none of these features are new, or even as advanced as the other personal web tools, and that's true - a9 is far and away the most aggressive personal web search, saving every search you perform and even the individual sites you visit, though even that lacks the killer app of saving the full text of pages ala Furl.
But this new offering by Yahoo is only a beta, and they will definitely add in new features as they go along; a likely target for them I would imagine is a revamp and integration of Yahoo Bookmarks, which has been around for years, but has been overtaken by far more powerful bookmark managers like Furl.

More info:
· My Yahoo! Search
· next.yahoo.com - New Yahoo area reserved for beta products, similar to Google Labs & MSN Sandbox
· Yahoo: our vision is of a very individual Web — a "My Web"
· My Yahoo Search and Yahoo Next are Launched
· Yahoo Bows New Personalized Search
· My Yahoo Search Offers Personal Search Features
· Yahoo Introduces Personal Search
· Yahoo wants users to get personal with search
· Yahoo Offers "My Web"
· My Yahoo! Beta Test w/ Big Focus on RSS (28 Sept)