At the time before Google, all the Search Engines more or less worked the same, basing all their information from Meta Keywords and on page content. This was quickly found to be easy to manipulate and get your website to be number one for a specific search event though your website had nothing to do with it.
Google decided that a better way to decide what sites are most relevant is by counting the number ob other websites that link to them. So as to assume if websites A, B, and C all link to Website D using the same type of anchor text, then Website D must be the most relevant.
This and some other algorithm factors that were just better the other engines led to Google becoming the best search engine.

If you want to know what made Google so rich its their introduction to their Google Adwords advertising campaign but thats a whole other story.

word spread from person to person.

Tried searching with Windows Live? So many paid-for results come up that I often don’t get to what I actually need.

Or Yahoo? How big is that page to open each time you open a browser? Far too big man.

wdw