Habari plugins
I've also managed to write a couple of semi-working plugins like asciify and tag cloud. Not a large contribution to Habari but it's getting larger by the minute :) Some of them can be found at -extras and some of them can be found at google-code (they may or may not work and comes with absolutely no support).
Asciify
For you guys using strange non-american characters, like å, ä or ö. This little plugin will turn those characters into more url friendly characters for tags, entry titles and so on.
Slimbox2
Yet another wrapper, this time for Slimbox2. For those liking Slimbox2 better then Lightbox.
tumblearchive
Maybe not the best archive plugin, but it's my archive plugin :).