DW - Deutsch lernen - German courses
Linguee - dictionary and search engine for translations
Leo's online Wörterbuch - A dictionary with all of the grammatical forms linked to the words you are looking for.
Das Beste Well known Reader’s Digest magazine. It doesn’t have up-to-date news but lots of topical and useful information.
Die Zeit online
Extensive list of online newspapers in German
Huffington Post - blogs (in German)
Daily German newspapers