Hi Maryann,

Aweber is a list manager/autoresponder while 1ShoppingCart is more of an all-in-one solution for autoresponder, list manager, shopping cart, affiliate program, etc.

Yes, KickStartCart is a private label 1SC (they share tech support etc and are basically the same program).

To answer question about who to go with, it depends a lot on your future plans. Do you have a need for selling digital downloads and an affiliate program next month? Then 1SC would fit the bill.

If you just need to add an opt-in form to grow your list and can sell items via Paypal, then Aweber will work. (If you need digital delivery, shopping cart, and affiliate program, you can always add on e-Junkie. Much less expensive option than 1SC.)