This July Artstor celebrates five years of serving the educational and arts communities. Since the Digital Library’s launch in 2004 with 300,000 images Artstor collections have grown to include more than one million images in the arts, architecture, humanities, and social sciences. Today Artstor enables a wide range of users—curators, scholars, educators, librarians, and students—to teach and study with breathtaking cultural objects, seminal architectural works, as well as a broad range of historical, political, social, economic, and cultural documentation from prehistory to the present in a single online workspace. To this end we continue to develop new collaborative projects with content contributors, and explore and develop technologies that will aid in the discovery, presenting, and sharing of the Digital Library content across our community of users.