Here are a few open-source projects I started or contributed to:
An image server for storing and saving screenshots created with the Gyazo screenshooter. It also features a web interface for uploading and mirroring images.
A dashboard for visualising and browsing your chef-provisioned servers, with the ability to generate graphs of the server layout (showing service interactions and dependencies, etc) and provide virtualisation information.
A dashboard for Solr replication. Shows the user the current index version across cores and Solr masters/slaves, the progress of replication, and so on. Allows the user to turn on/off replication, polling, execute queries, make backups. Useful with Solr 3.x; mostly outmoded by the new web interface in Solr 4.x.
facebewk is a clever little Python wrapper for the facebook Graph API. It is designed to minimise the number of HTTP requests, while providing a developer-friendly, dynamic representation of data pulled from the API.
Porick is yet another IRC quotes web application, designed as a more modern, AJAXy replacement for Chirpy!
An automatically updating graph of air pollution in 4 major Chinese cities, as tweeted by United States Embassy and Consulate twitter accounts.
An annoying twitter bot which corrects other users' misspellings.
A script that searches tineye for higher-res copies of album art.