1. Dictionaries
2. Free courses, grammar
3. Phrases, sentences
4. Pronunciation
5. Proverbs, idioms
6. Studying and working in AT/CH/DE
7. Multilingual news
1. Dictionaries:
English <> German:
http://www.lexilogos.com/english/german_dictionary.htm
Russian <> German:
http://deru.dict.cc/?s=
Turkish <> German:
https://deutsch-tuerkisch.net/
2. Free courses, grammar:
Explanations in English:
http://german.about.com/
http://www.dw.com/en/learn-german/german-courses/s-2547
http://www.germanveryeasy.com/
http://www.dartmouth.edu/~deutsch/Grammatik/Grammatik.html
http://www.canoo.net/index_en.html
http://www.germanforenglishspeakers.com
https://coerll.utexas.edu/gg/gr/about.html
http://www.verblisten.de
http://youtu.be/n0PGIlD58U4
Explanations in Spanish:
http://www.migramatica.com/aleman/
https://www.gramatica-alemana.es/curso-aleman/
Explanations in Russian:
http://www.grammade.ru/
3. Phrases, sentences:
http://www.tatoeba.org/eng
http://www.50languages.com/
4. Pronunciation:
http://www.de.forvo.com/languages/de
http://www.tatoeba.org/eng
5. Proverbs, idioms:
http://www.zeno.org/Wander-1867
http://www.redensarten-index.de/suche.php
6. Studying & working in AT/CH/DE:
http://www.anerkennung-in-deutschland.de/ (Germany)
http://www.berufsanerkennung.at/ (Austria)
7. Multilingual news:
http://www1.wdr.de/radio/funkhauseuropa/
http://www1.wdr.de/radio/cosmo/index.html
http://www.dw.com
Thanks for all additions!