Interesting etymology:

googol: The number 10 raised to the power 100 (10นบบ), written out as the numeral 1 followed by 100 zeros. ETYMOLOGY: Coined at the age of nine by Milton Sirotta, nephew of Edward Kasner (1878–1955), American mathematician.

http://www.bartleby.com/61/58/G0195800.html

In LIU I found, to my surprise, that this is not the same spelling as the name of the search engine. Perhaps the search-engine name used different spelling for copyright reasons. Can anyone advise?