Update: Most of my downloads are now hosted on my GitHub page. Older files and projects which are no longer relevant (hello, ActionScript!) have been removed.
The fine print: All downloads are free, and most downloads are covered by either an MIT-style license or a Creative Commons copyright (copyright notices are contained in the downloads). All files are provided as-is, with no guarantees. Please do not redistribute these files without my permission.
If you have technical questions, please post them in the eLearning Technology and Development Google Group.