The Index Translationum is a list of books translated in the world, i.e. an international bibliography of translations. The Index Translationum was created in 1932. The database contains cumulative bibliographical information on books translated and published in about one hundred of the UNESCO Member States since 1979 and totals more than 1.800,000 entries in all disciplines: literature, social and human sciences, natural and exact sciences, art, history and so forth. It is planned to update the work every four months.

http://portal.unesco.org/culture/en/ev.php-URL_ID=7810&URL_DO=DO_TOPIC&URL_SECTION=201.html

The Africa Book Centre Limited was founded on 1 April 1989 to provide books and music from and about the continent of Africa. Shipping to most countries in the world. Books available in many African languages and from the linguistics field in particular.

http://www.africabookcentre.com/acatalog/

Here you can make online conversions (e.g. metric conversions) for many measurement systems. The site provides conversion tables for both common (U.S., metric, etc.) and quite exotic units like Ancient Greek and Roman. You can also ask your questions and discuss how to convert units in the Units Conversion Forum.

http://www.convert-me.com/en/

Dictionaries in many languages, including bilingual dictionaries.

http://www.dicts.info/

African: Collection of African language dictionaries

A list of links to dictionaries for languages used in South Africa.

http://www.cyberserv.co.za/users/~jako/lang/dictionaries.htm

Electrical: Electropedia (IEV Online)

Electropedia (also known as the "IEV Online") is the world's most comprehensive online electrical and electronic terminology database containing more than 20 000 terms and definitions in English and French organized by subject area, with equivalent terms in various other languages: Arabic, Chinese, German, Italian, Japanese, Portuguese, Polish, Russian, Spanish and Swedish (coverage varies by subject area).

http://www.electropedia.org/

EU: Interactive Terminology for Europe (IATE)

The EU's database of terminology in all languages used in the 27 member states. Terminology covers a vast range of specialist areas.

http://iate.europa.eu

Medical: Terms in nine European languages

Multilingual glossary of technical and popular medical terms in nine European languages, commissioned by the European Commission (DG III) and executed by Heymans Institute of Pharmacology and Mercator School, Department of applied Linguistics.

http://users.ugent.be/~rvdstich/eugloss/welcome.html

Slang: Urban Dictionary

Urban Dictionary is a slang dictionary with about 4 million entries.

http://www.urbandictionary.com/

On-line translation aids which the European Commission's Translation DG uses in its day-to-day work.

http://ec.europa.eu/translation/language_aids/freelance/index_en.htm

EU DGT Multilingual Translation Memory

As of November 2007, the European Commission's Directorate-General for Translation (DGT) made publicly accessible its multilingual Translation Memory for the Acquis Communautaire (the body of EU law) - a collection of parallel texts (texts and their translation, also referred to as bi-texts) in 22 languages. This is a page for technical users, where you will find a summary of this unique resource and instructions on where to download it and how to produce bilingual aligned corpora for any of the 231 language pairs (462 language pair directions). For an example of one sentence translated into all 22 languages, click here. Please note that DGT-TM is not machine translation software.

http://langtech.jrc.it/DGT-TM.html

An encyclopedic reference work cataloging all of the world’s 6,912 known living languages. Includes language codes.

http://www.ethnologue.com/