Google has placed in its index an estimated 35 trillion Web pages across the Internet worldwide. While this is an amazing statistic, believe it or not, 35 trillion is barely the tip of the iceberg.
Google’s index represents only an estimated 4 percent of the information that exists on the Internet.
This is not a typo or misprint. The actual information that exists on the Web is impossible to know, but is estimated to be 500 times what is currently available through Google. Hard to believe, but true.
The Internet you can’t Google
Todd Lohenry 