Basic Mongolian - http://www.mongoliatoday.com/info/basic_mongolian.html Brief vocabulary presented by the online magazine "Mongolia Today."
Mongolian Abbreviations and Acronyms - http://userpage.fu-berlin.de/~corff/im/Sprache/acrobase.html Database by Oliver Corff, Infosystem Mongolei.
The Dongxiang Mongols and Their Language - http://userpage.fu-berlin.de/~corff/im/Sprache/Dongxiang.html Profile of the Dongxiang language, spoken in the province of Gansu in northwest China, by Oliver Corff, Infosystem Mongolei.
Mongolic Languages - http://en.wikipedia.org/wiki/Mongolic_languages Wikipedia article.
Mongolian Language - http://en.wikipedia.org/wiki/Mongolian_language Wikipedia article.
Preaspiration in Old Mongolian? - http://www.ling.umu.se/fonetik2003/pdf/005.pdf Article by Jan-Olof Svantesson proposing that Old Mongolian had preaspirated stops and affricates, like modern Khalkha.
Tonal Gestures in Mongolian Interrogatives - http://www.ling.umu.se/fonetik2003/pdf/189.pdf Report by A. Mukhanova Karlsson summarising a study of tonal courses in Mongolian yes-no and question word interrogatives.
Mongolian Words - http://www.languagelearninglinks.org/homepagemongolian.htm Vocabulary words and phrases.
Secondary Predication in Mongolian - http://coe-sun.kuis.ac.jp/coe/public/paper/outside/washio1.pdf Paper by Ryuichi Washio describing the semantic functions of the Adjective Phrase in preverbal position.