I have been working out for about three months now... I havent worked out really in my life but I have grown to love it. My arms,legs and chest are showing improvements but my stomach still isn't. Will someone please give me lots of exercises and tips I can do to develop a great hard stomach.

Thanks.

What's your bf% at?

Now, with that being said... Here's something to get your started and feel free to increase the reps as the weeks go by. I like to keep my ab work outs simple.

Stabalizer ball crunches 4x20
Russian Twist 4x20
Stabalizer ball pikes 4x20

im not in a position to give much advise but look into adding some cardio to your workout plan if you want better abs.