A friend of mine introduced me to a great website: http://www.twohundredsitups.com
This site provides an easy to follow program for strengthening and toning your abs in just 10 minutes a day, 3 days a week. They start by defining a traditional sit up, then show you how to correctly perform a crunch (or curl up) for maximum benefit for your abdominals.
The first step is to do a quick sit up test. Based on the results, you are guided through a six week program designed to get you to the ability to do two hundred sit ups. More importantly, the program will result in a strong core and tight abdominals.
Let’s try it. I did the test today (result 40, not bad I get to jump to week 3). Tomorrow I will start the program. Let me know how you do!