A List Apart has another brilliant examination of web writing up, called "Your About Page Is a Robot."  If you're doing any kind of writing for the Internet, ALA is a great place to go to get pointers and avoid simple mistakes.  FTA:

Like the rest of your website, your About page is a robot. You load it up with information, give it directives, and send it out to represent you in the world. Although forums, blogs, and other two-way forms of online communication help bring humans back into the equation, you’re pretty much stuck with the robot model for relatively static essentials like the About page—but you do get to decide what kind of robot you want to use.