Online payments for any business is really important. For Ice Cloud we are going to sell T-shirts and hats on the website. We are also going to do a donation option as well. Overall Google is probably the easiest way to accept credit cards. It seems to me to be a little more universal then Amazon or Paypal.
When i shop online i ususally use paypal when I go to checkout, the reason why is all i have to do is put in my username and password and click accept payment and i am good to go. I dont have to go through the billing info line by line putting in my info to never come back to the sight to use the account I just made with the individual site.