Last night I was noticing Twitters and some blog posts, as well as a DigitalPoint Forums thread that asked why did Google ban themselves. In short, a search for [google], [analytics], [adwords], [adsense], [google adwords], and so on, did not return the main Google.com result. So a search for [adwords] would not return http://adwords.google.com/ like it normally would.
Matt Cutts of Google even Twittered that he saw the issue and then soon after it was fixed, magically. ClickZ has captured images of the issue, I tried last night, and I did not see it myself but it did happen.
I have emailed Matt to try to learn what happened, if I find out, Ill update this post.
In any event, this is not the first time Google has been perceived to ban themselves. We covered a time in March 2005 and then again in July 2004.
Forum discussion at DigitalPoint Forums.
Update: Here is a statement from Google: