Here I'm going to keep a list of programming languages that I feel like I know enough to write something useful in. Of course, nothing can beat the simplicity of Python or the coolness of Android.

C/C++: molarmass.c

Java (did it in highschool, at least - and I program Android)

Racket (aka Scheme)

Turing (it's dead! Download it here)

MySQL with a little PHP

Does bash scripting count?: myscripts.tar.bz2 (Warning, no readme!)

Javascript/CSS/HTML[5]

Here's the languages on my to-learn hit list for the next couple of years

Ruby [on Rails]

Perl

PHP