Graphics Programming Black Book

It's available on the Internet for free & I recommend anyone who is interested in game programming to download it. You can get the chapters of the book in the PDF format from this page at GameDev.

Visual Basic .NET Programming

Nice book here on Google Book Search.

Useful OpenGL Book

An OpenGL book containing a lot of useful programs can be downloaded for free from here.

Scribd

Scribd is a site where you can download & upload different documents like PDFs, DOCs etc.

This is my Scribd page, I recommend that you check out the site as there are a huge number of programming books which can be downloaded from there.

Comic Book Format

If you need a Comic Book Viewer or you need to store some images in the .CBR Format. Then I recommend that you take a look at some of the links on this Wikipedia page.