- Debian — my favorite Linux distro
- Python — my favorite scripting language
- Vim — my favorite editor
- git — my favorite distributed version control system
- irssi — my favorite IRC client
- GNU Screen — terminal window manager. Especially useful when used together with SSH.
- Ratpoison — a simple window manager, largely modelled after GNU Screen. This is the window manager I've been using for the past 5 years. I think it minimizes distraction when coding.
- Crunchyroll — a very good, mostly free Anime streaming site
My other sites:
E-mail Tester — a site that lets you create free, disposable email addresses (a very simplified version of Mailinator)
checkip.karen-chan.com — a page that shows your IP address, reverse DNS name, country and timezone