What was missing for the »long tail« economy was a simple way to offer your products and services online with a system that manages your billing and accounting. Shopify.com is such an application. Their slogan: »A shop in minutes, a business for life.«.
Shopify.com gets a 3%-2% share of your sales. If the seller doesn’t earn anything Shopify.com won’t either.
What I would like to know is how earnings at shopify.com (and similar services that may appear soon) will appear in tax declarations — especially here in Germany.