Anglais: langue

Language exercises  
General help with writing
Writing - cover letters, CVs for law students
Listening

The BBC Learning English site is very rich.

BBC 6 minute English has several interesting topics. Among the many on offer:

BBC's Words in the News has shorter audio recordings, streaming or downloadable .mp3, transcripts. Topics covered include:

Deutsche Welle World (in English) also contains many listening opportunities.
Amanda_Knox_and_Italian_justice is just one example.

Some more legally oriented exercises can be found here.

Help with grammar
Prononciation
Dictionaries on line
Tests