It's not really a blog. Posts aren't organized in chronological order, and are often posted before being finished.
Brief rules references for card games and board games, along with some associated tools.
Zoomable version of the space minigame from xkcd 2712: gravity, with markers for collectables and locations.
A tessellating map of Aerb, from Worth the Candle, by Alexander Wales
A little musical toy, where each key on the keyboard is made to play a tone using the Web Audio API's oscillator objects.
Generates legally-distinct fantasy wizard schools by stitching together pre-defined rooms.