adept is a system for developing short courses for users needing to learn specific skills or knowledge. adept provides JIT ("just in time") learning, in contrast to the more usual "just in case" learning. It can be used as an intranet application to propagate knowledge to employees, or to educate customers via your homepage.
Diogenes is a tool for searching and browsing the Latin and ancient Greek texts published on CD-ROM by the Packard Humanities Institute and the Thesaurus Linguae Graecae. It comes as an easy-to-install stand-alone application for GNU/Linux, Mac OS X, and Windows, based on the Firefox browser (i.e. Xulrunner). Alternatively, it can be installed by a network administrator as a server on a local network, and users then access it via an ordinary Web browser. There is also a command-line tool which can optionally format output as LaTeX instead of HTML.
jbofihe (or more correctly jbofi'e) is a parser for checking the grammatical correctness of Lojban text. It also provides approximate translations of Lojban into English. (Lojban is a constructed human language with the interesting property that its grammar can be cast into a form that Bison can parse.) The package includes cmafi'e (a smaller version without grammar checking), and a program to aid lujvo (compound word) construction.
Ten Thumbs Typing Tutor is a complete typing course suitable for beginners, advanced typists, adults, and children. It features two games, animated diagrams, comments, progress reports, and much more. It also includes networking capabilities, updated graphics, the ability to import your own music, and password protection for student files.
OnlineCourse is a Zope Product that allows you to implement a web based distance learning application. Main features include an online chat classroom, message board, upload of course materials from MSWord .doc files, log of student participation, and provisions for assignment entry, homework entry, and grading.