Learning German

Dictionaries
Leo Online Dictionary
German Dictionaries in the Internet
Dictionaries in the Internet (All Languages)
German-English Dictionary  

|Grammar
German Grammar
German Grammar (with exercises)

Grammar and Dictionary

Phonetics/Pronunciation
Phonetics (pronunciation)

Pronunciation guide

Exercises
Goethe Institute (free exercises)
Die Zahlen (Practising German Numbers)
Vocabulary Exercises  
Spelling Practise (App For Android) 
German for Travellers 
Online-learning
BBC German Language courses

Deutsche Welle
Perfekt deutsch lernen (grammar exercises/podcast)
Slow German (podcast)

Institutions
Goethe-Institut

Goethe-Institut Singapore
DAAD Office Singapore

Informations about Studying in Germany
German Academic Exchange Service (DAAD)
HRK - Higher Education Compass

Miscellaneous
English and German Idioms and Proverbs