Est. Budget: $20.00
this is the main idea:
customer A is interested in item 1
customer A shares a link (like website.com?user=a&item=1) among his friends
if 3 (new or old) customers buy the item from the link, then user A get 1 credit score for the item 1 (and i will ship it for free to him)
what i need:
1) set up the ecommerce website (preferably using wordpress: WP Ecommerce or WooCommerce)
2) a plugin for handling ...