Here's the deal. You can't spot reduce. No matter what anyone tells you, you can't target an area of fat to eliminate by itself. If someone does tell you that, just smile and wave, then turn and walk away. Fat doesn't appear on our bodies in that fashion, so why do people expect it to leave in that way? It's all or nothing, baby. If you find a way to reduce fat on one part of your body without causing other parts to lose fat, then you deserve a cookie; heck, I'll bake you a few dozen. You CAN, however, spot TONE by exercising specific muscle groups. You can make those muscle groups larger and stronger individually, but you aren't going to see any of what you've accomplished if there's adipose tissue covering it.
It's my belief there are a bunch of people out there walking around with a pretty great six-pack beneath some belly fat. People who are jumping on each and every bandwagon of heralds proclaiming the above sentiment. Sure, most of those exercises are great, but until these people do what they are supposed to do outside of that singular move, the fat is there to stay.
Simply put: Eat really well, do some cardio, lift some weights and be generally active. There's no magic to any of this, just determination and discipline...and of course, math and science.