UNIcert (a German diploma for language courses at universities) Homepage: http://rcswww.urz.tu-dresden.de/~unicert/

Test "German as a Foreign Language": http://www.testdaf.de

International Students' Group of the Fachhochschule Deggendorf

Search Engines: www.google.de

German-English-English-German-Dictionary:http://dict.leo.org/?lang=de

Dictionaries to whatever language you can think of: http://www.yourdictionary.com

Free translations:http://babelfish.altavista.com/

Information about the TOEFL-Test: http://www.toefl.org

For people with highflying ambitions in English - improve your vocab daily with "One word a day": http://www.owad.de/

...and see the German site