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The Ethnologue is a catalogue of more than 6,700 languages spoken in 228 countries. The Ethnologue Name Index lists over 39,000 language, dialect, and alternate names. The Ethnologue Language Family Index organizes languages according to language families.
Category: Recursively Enumerable Languages
A site which shows that the languages generated by phrase structure grammars are recursively enumerable languages. Similarly, it shows that the languages generated by context sensitive grammars are accepted by linear bounded automata.
Category: Invented Languages
Intended for anyone who wants to create artificial languages -- for a fantasy or an alien world, as a hobby, as an interlanguage. It presents linguistically sound methods for creating naturalistic languages -- which can be reversed to create non-naturalistic languages.