A Search Engine Watch Forums thread asks why a URL is showing up twice for the same search.
The example search is sheffield jobs. Result number nine is www.sheffieldforum.co.uk/forumdisplay.php?f=49, but if you go to page two you should see the same exact URL in the second position (position twelve).
When has Google begun showing the same exact URL for the same search result in multiple positions? Of course, we know Google may show different URLs from the same site (domain) for a specific query. But the same exact URL, same exact page, multiple times for the same query?
Forum discussion Search Engine Watch Forums.

Comments:
Hugo Guzman
10/19/2007 01:11 pm
This was also brought up in WebmasterWorld. The prevailing theory is that this is some sort of glitch resulting from universal search. Basically, it appears as if Google is pulling the superfluous listing from another search stream, like Google Maps.
Barry Schwartz
10/19/2007 01:17 pm
Good insight Hugo. Do you have a link to that thread?
Matt Cutts
10/19/2007 07:19 pm
I've seen people discussing this a couple days ago within Google, so it's on their to-do list. It might take a week or two to be deployed, but I believe a change is already pending for this.
Barry Schwartz
10/19/2007 07:32 pm
Cool, Thanks for the confirmation Matt!