andrewshim - 2:49 pm on May 13, 2006 (gmt 0)

Actually, since early April, sites have started to "bounce" all over the serps. Yahoo! has been using "improved indexing technology" which has lots of changes :

- all "view as xml" and "add to myYahoo" links have been removed from the listings.
- some sites have dropped or removed totally from the serps.
- many sites are still bouncing in an out of the top 20
- some site which have long been "out" of the serps have suddenly floated back to the top 10.

No, as far as i know, (based on Y! official Search Blog) there's no update on may 11. The update started early April and hasn't ended! Yahoo!'s just being Yahoo - going round in circles and doing the "hokey pokey".