We very much encourage NTFs to form interest groups (IGs) around common themes. This document provides you with guidance on how to get started. The idea of IGs came from the September 2014 NTF community survey, and we discussed further and outlined some ideas for groups at the 2015 Annual Symposium. Essentially, we do not wish to be prescriptive about what groups should exist. We do ask for a nominated lead (or co-leaders) to come forward, and we will share your names (but not contact details) via this Blog. We encourage you to blog about your IG activities!