Some will have noticed that my blog now has Google ads. Well, one ad that has just popped up is an e-book by Joseph Prusa which is available to download free. All you have to do is give your email address and agree to recieving their newsletter. I have tested this to make sure it's cosha and now have a nice e-book to read later. If it disappears from my blog ( I have no control over this) I'm sure it will pop up on other similar sites.