SAAB 37 Viggen http://hem.passagen.se/weasle/
Offers aircraft specifications, photographs, data and production of variants and exports. {Available in English and Swedish languages}.
MiG-21.de http://www.mig-21.de/
History, deployment and technical data of the most built aircraft after World War II. [English and German languages.]
Su-30 http://www.hudi.republika.pl/Su-30.htm
Article describes the history and evolution of this long-range interceptor. Includes variants for use by India and China. Describes all major subsystems. Includes photos.