- AppEngine : Google's "cloud" of computing infrastructure. WeScheme uses AppEngine to handle user accounts, serverside compilation, and file management
- CodeMirror : Marijn Haverbeke's library for in-browser editing.
- EasyXDM : a cross-domain messaging library.
The source to WeScheme itself is available for download
, under the GNU LGPL
For more information about WeScheme, you can watch the video
or read the paper