PhotoArcs is a framework for flexible creation of timeline displays of photographs, photo-narratives, and consistent, collaboratively-created metadata. The interface aims to enable easy and fun manipulation and sharing of digital photographs and stories, organized around chronological arcs of photographs, to encourage remote sharing and interaction. We describe the design of the interface and how the design has changed across three iterations. We also report on the results of an exploratory lowfidelity usability study with five participants and an expert evaluation and critique with eleven user experience researchers, and outline future directions for the PhotoArcs project.