If you search for my full name, you find stuff I've written in my web editing job, an award I won a few years ago for writing, and a couple art pieces I did in high school (along with a bunch of people who aren't me). The username that I use as my email address will find you public posts from my livejournal, which are mostly goofy but not all that embarassing. For this site and others where I'm likely to talk about personal stuff, I like to use Hime or a variation on it because it's such a common word in japanese movies and anime that there's no way anyone can sort through the results to find me.
If someone happened to search for Tokezo Hime, the name I use for a couple of sites and blogs, they would find a picture of my face and links to the blogs I work on for my company, and nothing else.
Searching for my dance name with "belly dance" turns up shows I've performed in, my myspace page, and how to hire me to dance.