Cleaning time

I just removed loads of dead links and more are going to be removed in the coming days. I also removed links to some disputed files.

In the future i most probably won't add any links to the new and widely available books. i will also try to find more rapidshare links.

It also came to my attention that some of the books are available in ebook format from the publishers/authors. I will probably add direct links to the place where those books can be bought from.

New links coming soon.