Ethnologue: Langages of the World  
Maps and data for the world's known living languages. Some free content - most subscriber only - Colgate is not a subscriber.

FrameNet  
On-line lexical resource for English, based on frame semantics and supported by corpus evidence.

Linguistic Data Consortium  
Organization supporting language-related education, research and technology development by creating and sharing linguistic resources: data, tools and standards.

Modern Language Association Language Map  
The Modern Language Association (MLA) Language Map describes the linguistic and cultural composition of the United States.  The Map uses data from the 2000 United States census to display the locations and numbers of speakers of thirty languages and three groups of less commonly spoken languages in the United States.

Wordnet  
Large lexical database of English. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept.

World Atlas of Language Structures Online  
Large database of structural (phonological, grammatical, lexical) properties of languages gathered from descriptive materials (such as reference grammars) by many of the leading authorities. Search for languages by map region or by country.