Over 400 dictionaries, language reference, and subject reference works published by Oxford University Press.
View, browse, and search Hans Wehr's Dictionary, Lane's Lexicon and Supplement, and Hava's Dictionary
Arabic Almanac iPhone App (Hans Wehr)
Digital version of the famous Hans Wehr dictionary, searchable in Arabic by root. Also available for Android.
A dictionary of modern written Arabic (Hans Wehr)
1961 edition available for browse and download via MENAdoc. English entries are searchable.
Ancient Chinese to Modern Chinese 古代汉语字典
Modern Chinese to Modern Chinese 现代汉语大词典
Collection of dictionaries from the Institute of Linguistic Research
Фундаментальная электронная библиотека: Словари, энциклопедии
Collection of general and specialized dictionaries
Recommended Russian-English dictionaries:
Oxford Russian Dictionary
Katzner's English-Russian, Russian-English Dictionary