Language and Linguistics :: - Essays on language and linguistics and links to related materials.
Language Log :: - Weblog run by University of Pennsylvania phonetician Mark Liberman, with multiple guest linguists.
Lexicon of Linguistics :: - Searchable database of linguistic terminology updated with new terms in the areas of Generative Grammar (Minimalism) and Phonetics. Includes bibliography.
Linguistic Exploration :: - Multidimensional exploration of online linguistic databases.
The Linguistics Project :: - Interdisciplinary, international, internet-community on language and linguistics.
Maledicta Press :: - Specializes in negatively-valued words and expressions from all languages and cultures, focussing on the origin, etymology, meaning, use and influence of verbal aggression and abuse of any kind.
Museum of Human Language :: - Virtual museum with columns. Definition of a language, linguistics, and language function.
The sci.lang FAQ :: - Answers to frequently asked questions about dialects, languages and their relationships, linguistics, and phonetic systems.
Stewardship Project :: - Listings of international geographical names, orthography and transcription with commentaries on language.
Unilang Community :: - Provides a home for everybody interested in any aspect of language(s) or linguistics.