HTML5 boids (skewer-mode demo)
Search the Grinnell College Campus Directory on Android!
The Emacs Collective
The engine for haskell ide-integration. Not an IDE
A browser extension that encrypts your communications with many websites that offer HTTPS but still allow unencrypted connections.
Org mode files Java parser
org-link support for pdf-view-mode
Outliner for taking notes and managing to-do lists