Selling and creating books among other things does anyone else use this site?

From everything I've heard about it, Lulu is an excellent place to publish, but it's totally up to you to publicize your book. Have you tried sending copies to people who might review it? Setting up a website to promote your work is considered a good idea. If you are on any forums that allow you to use a sig, you can put your Lulu link in it.

I've written best-selling books about computers, design, ... at lunch to a person from NetObjects over, among other things,

You can always play on online games where loads of people play and you could promote them on there.