Page is a not externally linkable
reseller - 10:33 pm on May 7, 2008 (gmt 0)
It seems you are hitting different data centers (DCs). Different DCs receive different data at different times. To simplify, lets call it the data refreshes at Google DCs. Facinating, don't you think so ;-)
c41lum
Literally every few searches the results skip around I am even seeing one result jump from page 3 to 4th.