Yeah, site looks totally bogus. Jeff Bezos is mentioned in the headline, but not in the "article". The sentence structure is horrible. I think that the part, "Having been friends since childhood ..." is supposed to mean that Larry and Sergey were friends from childhood. If so, that's wrong, at least according to Google: "Larry Page and Sergey Brin were not terribly fond of each other when they first met as Stanford University graduate students in computer science in 1995." (http://www.google.com/corporate/history.html)
Yeah, I kind of agree. Site looks totally bizarre. Steven Levitt(freakonomics) has also mentioned somewhere that schooling and (obesseive)parenting are somewhat irrelevant in one's success (to some degree, at least).
I saw something in print about them last night and just googled "sergey larry montessori" today to find this page. There are other pages farther down the search results that seem better researched, but the basic idea is still that Montessori gave them freedom to explore interests.
One additional thing in another article is that Montessori let Sergey learn at his own pace, important when he was first learing English: