S4 Capital-backed Media.Monks, a digital-first marketing and advertising services company, agreed to merge with XX Artists, a social media marketing agency. Financial terms were not disclosed. “Through our teams’ incredible efforts, we have been fortunate to experience fantastic traction at XX Artists the last many years. In our forthcoming partnership with S4Capital and Media.Monks, we are eager to provide exciting growth, development and innovation opportunities for our people and clients alike,” Kyle Kuhns, XX Artists CEO and Founder.