Recently, Techdirt began a new monetization experiment with Coil. It's a system for making payments on the web, but it's not just another micropayment service layered on top of existing technology — it's part of a broader effort to create an open standard for web monetization based on the Interledger network protocol. This week, we're joined by Coil founder and Interledger co-creator Stefan Thomas to explain how an open protocol for payments could change business models on the web.