A Guide to Online Shopping Options/Providers/Carts

Welcome! This seems to come up in a lot of different places from different people so i thought I'd try and write an encompassing overview of the different options and routes out there, or at least the main ones. There is a lot of discuss here. I will cover: * You need ballpark figures * Some definitions * Different options on how to take payment (All in one, Full blown, and the inbetweens) * Different shopping carts to choose from * Conclusion This article is not that long...