Actually, I do not know any course. I learnt Western Blot almost on my own, so I can give you more information about web sites with usefull info. Moreover, I can answer some of your questions, as far as I know about it....
Maria Christina, is it possible for you to give me some information on how you learned Western Blots on your own. I don't have a bachelor's degree yet, but I would like to learn more about as many molecular biology skills as possible before entering the actual lab so that i feel more comfortable.