I started reading Me and My Web Shadow: How to Manage Your Online Reputation, by Antony Mayfield and its got some good stuff in it. It boils down to a how to/what to do to keep track of yourself online. Basically your online identity is your own so you better look after it.
I don’t think it would be fair to Mr. Mayfield to give away his tips but I do think its worth your time to read it. Of course feel free to contact Smack Smog Inc. if you’d like us to watch out for you!