I have been testing for a long time by now, but this video is still interesting, wether you are a beginner or a newbie in the AB testing field.
You might know Eric Peterson, one of these guys that are kind of famous within the web analytics field. I have seen him several times and I think he has a great passion for what he does. I definately think he is a very good for the whole conversion and web analytics field. Have a look at his two videos and dont forget to comment.