Here is another good web site: http://www.lowcarbliving.com/uncar.html

Remember that Splenda is not compleatly carb free:
Splenda Bulk Carb Counts:

6 carbs in 1/4 cup
12 carbs in 1/2 cup
18 carbs in 3/4 cup
24 carbs in 1 cup

Splenda Packets should be counted as 1 carb each