Ethnologue: Switzerland
Languages spoken in Switzerland: country listing in the Ethnologue database: Languages of the World
Languages in Switzerland
Language distribution and language relations in Switzerland, by the Swiss Embassy in the US.
Mother tongue in Switzerland
First languages of the Swiss Population: Percentages of the 'National Languages' German, French, Italian, and Romansh according to the 1990 Census.
Romansh - Bainvegni
Information about the Romansh language, including an introductory teaching grammar (still in development). The site is intended as a central website for all English-language information concerning the language.