These are some IT / programming books that you can read online. It is free on InformIT.com 's site.
1. Sams Teach Yourself Microsoft Office 2003 in 24 Hours
By Greg Perry
2. Mac OS X Unleashed
By John Ray and William Ray
3.Red Hat Linux 7 Unleashed
By William Ball
4. Sams Teach Yourself Microsoft Windows 2000 Professional in 10 Minutes
By Dorothy Burke and Jane Calabriaa
5. Sams Teach Yourself Microsoft Windows XP in 24 Hours
By Greg Perry
6. Sams Teach Yourself C# in 24 Hours
By James Foxall and Wendy Haro-Chun
7. Sams Teach Yourself Java 2 in 24 Hours
By Rogers Cadenhead
8. Sams Teach Yourself .Net in 21 Days
By Jason Beres
9. Sams Teach Yourself SQL in 24 Hours
By Ron Plew and Ryan Stephens
10. Sams Teach Yourself Microsoft SQL Server 7 in 21 Days
By Richard Waymire and Rick Sawtell
11. Sams Teach Yourself Visual Basic 6 in 24 Hours
By Greg Perry
12. Visual C++ 6 Unleashed
By MICKEY WILLIAMS and David Bennett
13. Sams Teach Yourself HTML 4 in 24 Hours
By Dick Oliver
14. Sams Teach Yourself JavaScript in 24 Hours
By Michael Moncur
15. Sams Teach Yourself XML in 21 Days
By Steve Holzner