What are some alternatives?
When comparing Amazon and eBay, you can also consider the following products
Etsy - Buy and sell handmade or vintage items, art and supplies on Etsy, the worlds most vibrant handmade...
Needora - Get what you need, sell what you don't.
Openbazaar - A free online marketplace to buy and sell goods / services using Bitcoin. OpenBazaar is a peer-to-peer ecommerce platform with no fees or restrictions.
Aliexpress - AliExpress is the largest e-commerce site in the world!
Souq.com - The Middle Eastern version of Amazon.com
craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events