Let's recap the main points of this guide:
If you're new to selling online, you may want to consider some low cost and low risk options for sourcing such as garage sales, second hand stores and estate sales. Flipping used items can be fun and exciting as long as you don't mind a little research.
If you already have some experience selling and you're looking for high volume sourcing solutions to facilitate growth, consider dropshipping and wholesale supply. The set-up is more involved and you'll need to put a little work into financing large amounts of inventory, but you'll be able to ramp up your sales much more than any retail flipping strategy.