You’ve probably seen them all over the place, those free membership sites. You know you get all this free stuff just for signing up. Like the ones where you get all kinds of free internet marketing ebooks, or software, even free graphics.

Thing is, most people don’t understand the big principle behind them…

Locking people in!

When you join one those places, you have to subscribe to their list, right?

And if you want to unsubscribe,...