A curated list of delightful XMPP related resources.
A script which digs up and displays lots of system configuration information, such as the specifics of the CPUs, storage devices (with identifying information) and space free, version numbers of common utilities, known hardware vulnerabilities, memory, and more. Even if you don't run it as root, you'll still get really useful information out of it.
Written in Perl but don't let that stop you.
In the AUR.
A technical reference site that has lots of odd information, most of it PC related. Data formats, file extensions, datastructures and algorithms of sundry kinds and uses, hardware specs, microcontrollers, history, advice... there's a lot of stuff buried in here. If you need something you could do worse than check here first.
3749 links, including 200 private