Google <---> Topeka
Polistra
noted happily when Topeka renamed itself to Google. Today, for some unknown reason :) Google has returned the honor.
Amid their
cute explanation was a neat but accidental (or not?) geographical pun. Here's their list of proper and improper ways to use the new trademark:

AltaVista was one of the earliest search engines, long since overshadowed by Google.
What they (maybe) don't know is that Alta Vista is also a little town not far from the real Topeka, long since overshadowed by Topeka.