Just did a backlinks check for an internal page of one site, Google showed me the backlinks for the main page of another site hosted on the same server.
I triple checked that everything was correct (search query, anti-virus working, spyware cleared etc. etc.) but sure enough, Google is showing backlinks for one site when I search for them for another site. It is showing this for several internal pages on one site. Both sites are on the same server and same IP address. I'm checking my other sites/servers now but thought I'd find out if anyone else is experiencing this - or if you haven't noticed you can check it out now and try and collect some data.
This may be integral to understanding how Google views the web and how it views sites on the same server.
Just so you know, I don't cross-link sites on the same server/IP address .... oh, I'm also showing a backlinks update too for what it's worth ....