Driver Guide: Finding the right driver can be an extremely time consuming task, but if you are up to the challenge this site should have the correct driver you are looking for.
Driver Zone: More than 100,000 drivers, however many have now been outdated. Worth looking if you are after an older driver.
Driver Files: Many different driver files are available here, from printers to video cards they have all the major brands.
How to Write Device Drivers: A very informative info pack on how drivers are made, and how to write your own.
Drivers, How stuff works: Sean and Andy discuss how device drivers work on our computers and why there are necessary to use.