I've spent and wasted a lot of time searching the  Internet, usually for drivers for equipment salvaged from the Ark. Here's some shortcuts to help you.

*  Amazon itself

*  Reconditioned desktops and Laptops

*  IT peripherals, basically the bits and bobs you spend a long time sourcing

* A place to start for Drivers

*  Technical books, because they are sometimes difficult to find both new and second-hand.

Local School and Varsity Textbooks

International New & Used Textbooks

Free Microsoft Technical EBooks - available till MIcrosoft switch the link off.