At Ebook-x.com you will find a great selection of books for the computer oriented audience.
This site features ebooks that can be downloaded at absolutely no cost on subjects such as programming, database, operating systems, as well as many others including web and graphic design, Flash, Cisco, networking, security, and much more. Although this ebook website carries mostly computer related material, you will also find some ebooks on science, engineering, and even issues of magazines on topics such as animation, business, and more. If you want to learn more about the world of computers, science, or business but don’t want to spend a lot of money in order to do so, this is the site for you. Check out the featured ebooks on the home page, or browse through the different categories until you find what it is you’re looking for. There’s plenty of material to choose from, and you’re sure to find something that will be of help to you. 
