What resources do the communities of practice have? ATD KB Admin 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 How much does it cost to join a community in addition to the ones that come with my membership? How do I access my customizable ATD member benefits?