there are a couple of forums that are dedicated to nothing but penis enlargement. i know pegym and thunders place are 2 big ones. i'm planning on giving it a serious go when or if i ever get my fucking insurance to pay up on the human growth. figured it could only help. the way i see it they aren't selling anything, and it takes a lot of hours, so there has to at least be something to it. the whole thing around the pump is that you pump more blood into it, and if you do that consistently over time you slowly increase the amount of blood that can go in, making you larger with erections. ligament stretches and jelqing or some form of stretching are the other 2 main ones.