This page contains information links rather than commercial links. For courses, products & services, see the icons to the right. If you'd like to suggest a commercial link, see our network page.
Core 77 – split tally sticks – a Medieval anti-counterfeiting (and UCO) system
Credit Commons Society – working on designs for commons housing via rent-credit obligations
Independent – the story of ‘deli dollars’ – UCOs in Massachussetts, 1989
Island Power – installing renewable energy on islands using UCOs (energy-credit obligations)