Connexions is a Content Commons of free, open-licensed educational materials in fields such as music, electrical engineering and psychology.

DataDragon Information Services Home Page. Includes music education and history, CGI scripts, and more!

CLEF - Cross-Language Evaluation Forum runs a series of evaluation campaigns testing monolingual and cross-language information retrieval systems. Reports on the different experiments are presented at annual workshops, published on-line and in the Springer LNCS series. The Web site provides information on participation, results, workshops, on-line publications and links to related activities.