There was discussion on John Battelle’s search blog on how Google’s website was actually showing up in some searches, suggesting that some results were "hand-tweaked".
A search for "canadian voip" returns Google as the #1 hit. I know that I and others have linked to Google searches, especially with title tags of "Google Search for Canadian VoIP", so that may help explain it.
There are a handful of other searches where Google.com is either the #1 hit or somewhere in the top 10. Ouch…I think there will be some "hand tweaking" to remove results that include Google.com…
Rendering context...