Looking for technical information? The the web is a great place to start but there is just so much out there, where do you begin? Also sometimes it is nice to have an offline copy to refer to.
Today I stumbled upon a great site that has collected together a whole load of technical resources to download, somewhat imaginatively title The Quick Reference Site it has a collection of both quick reference guides and ebooks. Unfortunately it doesn’t seem to have been update in quite a while but there is still plenty there to get your teeth into.
If you want something more modern then take a look at this guide I wrote a while back on getting Free Quick Reference Cards.