Greenlight - An app that grades and recommends sustainable shopping.
AliveShoes - Launch your own shoe line
Ethical Resources - Huge repository of ethical alternatives to mainstream stuff
Bucketfeet - Artist-designed footwear
Swag Fair - Sustainable swag made by small businesses
Jumpseller Sell Shoes Online - Jumpseller is an all-in-one online platform that is facilitating you to sell shoes online, having extensive custom designing support.