Boulder, Colorado ReUseIt - The ReUseIt Network (RIN) is an on-line forum that serves as a tool to make connections between community members who want to help each other, themselves, and their environment. In a disposable society where many items are discarded long before they have actually outlived their use, The ReUseIt Network helps get things from people who have them but don't want them to people who want them but don't have them.