As well as blogging and tweeting, I make stuff...
Chromoscope
View the Universe in different colours in your browser. Similar to Google Sky or WWT but you can download it and run it offline.
LookUP
Provide the name of an astronomical object and get basic details. Get results as a webpage, XML, JSON or on your iPhone. It makes Simbad and NED portable.
365 Days of Astronomy
I automagically create the weekly edition of the podcast using Perl, Sox and (shudder) IDL.
Jodcast
A twice-monthly astronomy podcast featuring the latest news, interviews and the night sky.
SpaceBuzz
A toy I made to display the currently popular tags being used within the astronomy blogosphere.
.Astronomy
The most exciting astronomy-internet-related conference of the year! I was on the organising committee for the second .Astronomy in Leiden.
Astronomy Media Player
My attempt to bring all the astronomy podcasts into one place. It has since been superceded by Portal to the Universe.