Abstract This concluding chapter focuses, as did the introductory one, on the evolving infrastructure for the transmission of information in today’s Information Age. Here we do not attempt to summarize or evaluate how the recipients used the information transmitted by the evolving broader information infrastructure. Those responses, the primary subjects in the preceding chapters, reflect the ever-changing economic, political, social, and cultural changes experienced in the United States. They will continue to do this in the future. Speculating on the future is really outside the scope of this book. However, a reader interested in the future should take notice of the patterns of the ebb and flow of information-handling in America’s past and present. There is a striking continuity in the infrastructural evolution that began with the postal system in the eighteenth century, then moved to the railway and the telegraph, the telephone, radio and television, and then computers both big and small. That continuity will probably have a significant impact on the ongoing evolution of the infrastructure of the Information Age for reasons that will be made clear later.