How Many People Have Your Name?

I found this linked up in one of John Dvorak's blogs.

HowManyOfMe.com

There are 86 people with my name in the U.S.A. How many have your name?

I usually don't write about these kinds of things but it has got me thinking - mostly about the amount of change and the availability of information (good or bad) we are all experiencing. With a click this app tells me:

• There are 156,908 people in the U.S. with the first name Gordon.
• Statistically the 383rd most popular first name.
• More than 99.9 percent of people with the first name Gordon are male.
• There are 165,960 people in the U.S. with the last name Snyder.
• Statistically Snyder is the 171st most popular last name.

I tried Michael Qaissaunee and got the following message: "This name is not found in our database, this means the name is relatively uncommon". The FAQ section of the site references some stats and claims "about 19% of people will have either one or both names missing from the list".

I don't have any idea how accurate this information is but the site claims "all numbers estimated are based upon statistical and demographic data from US Census Bureau". I wonder how many faculty would accept this kind of reference in student report or presentation? I'm not sure I would but how could I argue without doing time consuming research and even then what could I find?
I poked around for 10 minutes on the web and it looks like the Census Bureau has a list of frequently occurring last names from 1990. I think I could probably find more if I continued my search.