I have just uploaded a couple of videos onto youtube going through some German grammar. At the moment I have done accusative and dative pronouns and adjective endings following indefinite articles.
"The florid and error-strewn translations of Helen Lowe-Porter added to this ponderous impression. (John E. Woods's translations of the major novels, published between 1993 and 2005, are far superior.)"
On-line verb conjugator. Includes the following languages:- English, French, German, Italian, Portuguese and Spanish.
There are training exercises too.
Free downloads of audiobooks. German has the second highest number of recordings. Go to 'advanced search' and select 'German' in the 'Language' section.
Wow - you should join this site if you are a German teacher/learner! It has LOADS of online activities to practise your German not to mention current topics and competitions! Check it out!