The thing that is certain is that the correct spelling of that large number of googol. There are all types of stories as to the origin of Google.As the owner of Googol.com, I would like to just add a bit of background to the Googol/Google names. I am sure that there was many things that went into the two founders choosing the name they did. I have had the Googol.com domain for quite a few years, well before Google was even a search engine.
One evening, I got an email from the future founders of Google, saying that they were a couple Stanford Grad students and they were starting a search engine and they were wondering if they could buy my domain. My first though was that is sounded very much like something a couple other Stanford Grads had done (yahoo) and it sounded like they were a day late and a dollar short. I certainly did not intend on giving up googol.com for what I believed was a company that would never make it. I am glad to say, I was wrong about what they could do. What a great execution. In any case, they used Google instead and they have done a great job building what to date is a web revolution.
Congratulations to Larry Page and Sergey Brin. Great job. The only part I don't like, is that my web site loads like a dog from all the people who come to my site first because they go to the correct spelling of Googol.