Recent is relative right now, but here's a few things I've done in the past that I thought were worth bringing to the new site.
A simple but flexible in-browser corkboard.
This generates random maps/caves based on a cellular automata algorithm.
JRPG-styled chat windows for the masses! Kinda neat for RP things and whatnot.
Basically this generates random maps/caves based on a cellular automata algorithm. Birth controls how many "live" cells need to be adjacent to a "dead" cell for it to become alive again, Death controls how many before it becomes a dead cell, probability sets up how many live cells the algorithm needs to begin with, and tile size changes the size of the tiles. If you set that to 1 it WILL lag for a while so be careful.