This document summarizes a study that extends the Unified Theory of Acceptance and Use of Technology (UTAUT) to explain social media adoption by microbusinesses. The study used action research to facilitate the adoption of a Facebook business page by a microbusiness. It found that key UTAUT constructs like performance and effort expectancy played insignificant roles, and social influence and facilitating conditions did not influence adoption intentions. Instead, the microbusiness owners' characteristics and the effort required to codify content dominated social media use. When owners saw gaining new customers as a goal, their behavior changed and they made more effort using the Facebook page, replacing behavioral intention as the main predictor of adoption within the microbusiness context.