From http://www.easyslapbasslessons.com/ a compilation of lots of useful mini slap bass lessons. These are excerpts from my 12-part video series of Easy Slap Bass Lessons.
/>If you are a beginner to intermediate slap bass player, please go through all of this video. (There is a cool slow motion at the end.) You may even have to come back to this video as it shows you how to play numerous slap bass techniques, all in easy-to-understand steps.
Bass of Luck!