Awesome Ab Secrets

By lifting your own body weight. Have you seen USHER he does all his work outs by doing stretches and moves and lifting his own body weight. Not one piece of gym equipment.
FreeTrainers Forums – 12- week Abs without use of machines

You can have the best abs ever, but they will never be seen unless you also follow a diet that encourages muscle gain and fat loss. The gut is the hardest place to lose fat (for guys), but it is possible. Change your meals so that you are eating 6 small meals a day — each spaced 2-3 hrs apart. Each meal should include a serving of protein and a “good” carbohydrate (no simple or refined carbs.) You can also try working out first thing in the morning before you eat anything. The key is to get the body to burn fat by increasing your metabolism. If you are working out regularly, get some skin-fold calipers and measure your progress that way instead of with the scale. When you are eating right and exercising, you are building lean muscle mass and burning fat — the scale might not show the progress but using skin-fold calipers to determing body fat percentage is a great way to see results.

The Turbulance Training System .