Russian-English Slang Dictionary - Dictionary of Russian slang, vulgarisms, colloquialisms and Internet jargon reflecting contemporary Russian language usage. - http://www.russki-mat.net/e/Russian.htm
NATO-RUSSIA Military and Political Dictionary - By Igor Sharshakov, translator and lexicologist. Over 35,000 entries. Also sold as an e-book. - http://www.foreignword.com/Dictionary/Nato/
English-Russian Oil Dictionary - Online petroleum dictionary including words and expressions pertaining to oil and gas industry. - http://oilterms.hut.ru/
New Large English-Russian Dictionaries - Online lookup. Incorporates a standard bilingual dictionary and an engineering dictionary. - http://www.ets.ru/udict-e-r-stud-e.htm
Multitran On-Line Dictionary - English-Russian, Russian-English dictionary for 200 subjects. Includes phrases, examples and cross-references. - http://www.multitran.ru/DefaultE.htm
English - Russian dictionary - Approx. 50,000 words translated. Requires CP-1251 or KOI-8 font. - http://sinyagin.pp.ru/engrus-mirrors.html
The Comprehensive Russian Computer Dictionary - Containing 30,000 computer-related entries from English and Russian, as well as English-Russian and Russian-English. On-line search is available. - http://www.russian-dictionary.org/