You can get drivers, and/or driver updates via these sites.
Device drivers, sometimes called hardware drivers, are small blocks of software, program routines, which are used to interface between an operating system, and various hardware devices, usually peripherals. Writing them demands deep knowledge of the OS, and of a device's command language and properties.
For more information, see:
http://www.techweb.com/encyclopedia/defineterm?term=driver
Provides links and information for almost all companies that manufacture computer devices, as well as an archive of older drivers. http://www.windrivers.com