[AstroJetson]

I have a number of things that I'm interested in from compiler and interpreter design to boating to things about the Raspberry Pi. While most of it I can find with Google, what I do is put the link and a snippet about the details and keep that in a personal wiki that I run. (Quick shout out to JSPWiki)

This lets me find things that are closer to what I want or have used before (where was that set of instructions on the Pi Sense Hat). The wiki allows me to categorize things for easier finding, but the built in search helps.

I also own books like Machinery's Handbook, ARRL Handbook (ham radio) and the CRC Handbook for quick data reference. All of that information is on the web, but the books bring it to something that is a little quicker for me to find.