Bob Metcalf had the answer years ago. Micromoney across the internet. In the 1990's the idea was laughed at but now it is technically feasible. Google Microsoft Yahoo and others are large enough to manage both sides of the transaction. If you want an email to hit my inbox and you are not in my address book 10 cents. My preferred micro money manager would skim 10% and then credit the balance to me. I then could make deposits to the micromoney icon on blogs I like as contributions. If I read more blogs than I get spam I could chuck a few dollars into my account easily thru paypal. The pass thru costs help relieve the costs of the infrastructure as well as assisting all of us who have to manage spam content, which is 97% of all email traffic at the moment.