Great webpage with lots of conjunction tips and tricks (and fun cartoons :)
http://mweiss199.wordpress.com/2012/02/29/conjunctions-in-german-konjunktionen-auf-deutsch-coordinating-and-subordinating/
http://mweiss199.wordpress.com/2012/02/29/conjunctions-in-german-konjunktionen-auf-deutsch-coordinating-and-subordinating/