E Coupons that load to your frequent shopper card

Here is a great article on them and how they can be used and why.

http://www.southernsavers.com/2009/01/using-e-coupons-paper-coupons/

Southern Savers is a great resource of information.  Be sure to take time to read all of her getting started guides especially the extreme couponing 101 articles.

These coupons are available at Upromise (check the button on the side and be sure to check out the details as it works a little different than the others.

http://www.pgesaver.com/
http://www.cellfire.com/
http://www.shortcuts.com/