In 2002, The Air Force’s Chief Information Officer (CIO) tasked Air Force Knowledge Now (AFKN) to host online Communities of Practice as a means to enhance and facilitate KM. (AF/CIO, 2002) These CoPs are intended to provide users, which share a functional or organizational bond, the ability to electronically collaborate. There have been several studies performed previously at the Air Force Institute of Technology (AFIT) on CoPs. The current research will explore some of the findings from these previous studies, while applying the theories of the Technology Acceptance Model (TAM) in order to gain a better understanding of the use and acceptance of CoPs.