Recently I was doing a link:xxx search on Alta Vista to see how many sites were linked back to my Save Ferris Campaign site. Each time that I did the search however, it gave me completely different numbers. The first time I searched, it told me that I had 687 sites that were linked back to me. As I moved to the next page, it told me I had 27. Is this a common thing for AV to give you one number on the outset and then a second one as you continue on?