This is an amazingly cool site, the Baby Name Wizard!!!

You can type in most any name and get a graph of how popular it was during the last century. Some rise in the middle, but drop at the ends like Karen. Others spiked at the beginning, like Adelle, or the end, like Madison. Others started off well, took a hit in the middle, then made a comeback, like Emma. Still others just have a funky pattern that makes you wonder, was there a reason the name Caesar spiked in 1910 and 1950, otherwise dropping out of sight almost completely?

I just thought this one was a lot of fun to play with.