I am interested in starting a price comparison website like pricecheck.com.ng or quickprice. for foreign companies like amazon and the rest, they have public api's that one could tap into for prices but Nigerian e-commerce websites don't seem to provide these facilities. before exploring any single option, I would like to inquire if anyone has an idea of how pricecheck got e-commerce sites to list with them and also any other useful information on how they started. thank you