We have already had this discussion before!! but what the hell lol!!
The organisation of the secret could well be a scam, it is a buisness proclaiming they have all the answers.
The main problem is that the thing they preached is not actually a secret it is fairly common knowlege. If you concentrate on your goals and apply you concentration and focus you can achieve alot!!
The problem comes where they preach that all you need to do is project your positivitiy and your wish to the universe and it is given, this is really bad because it implies that all you need to do to get your goal is to wish for it.
For example, if I wanted to become a rich buisness man and I just basically sat in my armchair projecting my wish to the universe. Will I become rich? Will I hell. I would have to get out of my chair and do something that will make me rich.
The thing that is useful is by telling you to focus on your goals and affirm a positive outlook on your goal. With out this your goal seems unreachable and you will never reach it. however the same goes for if you just sit in your chair wishing it isn't going to help you.
Apply a positive approach and focus on your goal and have the get up and go attitude along with actually getting up and go and you can achieve anything.
It is no secret, its bloody common sense for god sake!!