AuctionSlanguage - http://www.auctionslanguage.com/
Your source for auction acronyms and abbreviations on eBay, uBid, and Amazon.
EUdict - http://www.eudict.com/
A collection of online dictionaries for the languages spoken mostly in the European community.
Farlex Free Dictionary - http://www.thefreedictionary.com/
Provides many kinds of dictionaries including medical and legal and comes in 10 different languages.
Interglot - http://www.interglot.com/
Search for Dutch, English, German, French, Spanish, and Swedish translations or pick from the list of recently looked up words.
Online Dictionary - http://www.online-dictionary.biz/
Online dictionary in 10 languages - English, French, German, Japanese, Chinese, Spanish, Italian, Portuguese, Latin, Swedish, Russian, Danish and Polish.
The Papillon Project - http://www.papillon-dictionary.org/
Aims at creating a multilingual lexical database covering among others English, French, German, Japanese, Lao, Thaï and Chinese.