FOLDOC
FOLDOC is a searchable dictionary of acronyms, jargon, programming languages, tools, architecture, operating systems, networking, theory, conventions, standards, mathematics, telecoms, electronics, institutions, companies, projects, products, history, in fact anything to do with computing. The dictionary has been growing since 1985 and now contains over 12000 definitions totalling more than four megabytes. Entries are cross-referenced to each other and to related resources elsewhere on the net.