Seems like a reasonable description of numbers which only appear once in a google search. Try finding one shorter than nine digits, and you’ll be at it a while. The average number of matches for an eight digit number appears to be between 5 and 10, which means I have no trouble believing that their index really is frikkin huge. It’s also a great way to find a page almost randomly… maybe Google should have an "I’m feeling REALLY lucky" button for those occasions when you don’t even know what you’re searching for in the first place.
Unblogged Stories Ocean’s 13