What resources do the communities of practice have? KB Admin, ATD Updated October 14, 2016 19:23 Follow The communities of practice offer content specific to that community, including centers of interest. This may be in the form of webcasts, publications, education programs, blog posts, and social media. Related articles What is a community of practice? How many ATD communities of practice are there? I’m interested in writing an article, blog, or book. Whom should I contact? What are the benefits to joining an ATD community of practice? How much does it cost to join a community in addition to the ones that come with my membership?