Here is Roger Sensei's website first of all for those who are too lazy to find it yourselves:
http://www.evanseasyjapanese.com/


There you can find his (awesome but long) youtube videos that teach you some Japanese :D. Share with your friends who want to learn Japanese (but aren't in Japanese class).

link to his youtube channel:
http://www.youtube.com/user/evangrogers/videos?flow=grid&view=0

You can relearn Japanese if you forgot some too!