Dear Students of German,
there are various useful and entertaining resources on the interweb where you could supplement your knowledge of German or improve your skills.
If you have some spare time, you might want to try them out:
Step into German by the Goethe Institut with lots of cultural stuff like soccer of recent German music.
Learning German at Deutsche Welle, with lots of news, resources audio adventures and exercises aimed at learners of all stages, from A1 onwards.
German Steps, a language course hosted by the BBC with various situations with audio, interactive exercises and cultural background.
Dict.leo.org - one of the best dictionaries for German - English on the web.