Micropayments for publishing have been the subject of significant debate for a number of years, garnering a combination of staunch supporters and loud critics. In general, supporters think that micropayments will encourage readers to pay for content that they find valuable.
Micropayments seem like a solution to how to make money with online content. They are slow to catch on. I suspect because credit card companies don’t like them. Also, the retail world doesn’t think in terms of less than a penny. This article looks at Blendle, Flattr, and several others.