I recently optimized a page for a new keyword (a few weeks ago maybe)... just went on Inktomi to check if it was updated in their index yet and found something strange. When doing a search for the keyword we had optimized for, the page was there with a recent date (February 5, 2003)... so far, so good. I did a search for one of our other keywords, and found the same URL appear in the results with the old title, looked at the date and it was January 16, 2003. Inktomi has two different versions of the page in their index, and it is not one from our paid inclusion list!
In this particular case, it is actually helpfull to us... but is this something that happens a lot? I'm confused, and ideas on whats going on?