Wikimedia
Wikipedia: Russian Language
A very comprehensive site about the Russian language. Includes information on countries where Russian is the primary language, the history of the language, different dialects, derived languages, the writing system, and the phonological...
Other
Alpha Dictionary: Online Russian Reference Grammar
Most questions about Russian grammar can be answered at this website. Intended for native speakers of English who are interested in learning Russian. Background on Russian grammar might also be useful by ELL students and their teachers,...