Ethnologue: Languages of the World's a web and print publication of SIL International (formerly known as the Summer Institute of Linguistics), a Christian linguistic service organization, which studies lesser-known languages, primarily to provide the speakers with Bibles in their native language. The Ethnologue contains statistics for 6,912 languages in the 15th edition, released in 2005 (up from 6,809 in the 14th edition, released 2000) and gives the number of speakers, location, dialects, ling… (More on Ethnologue)