In surveying a few long-lasting digital publishing projects, we'll learn what characteristics have made them credible, sustainable, and fundable. What decisions shaped the projects and helped ensure their longevity? What kinds of institutional and grant support have fostered their continued growth? What technological factors have been important in their durability? Possible projects include the Brown Women Writer's Project, William Blake Archive, Rossetti Archive, Walt Whitman Archive, and the Index Thomisticus.