This month, the "Journal of Web Librarianship" is exploring the idea of data curation and its uses in libraries. The word "data" is as universal now as the word "cloud" was last year, and it is no accident that libraries are exploring how best to support data curation services. Data curation involves library activities in just about every way, from information description and access to preservation and storage. However, like many information fields, data curation is interdisciplinary, and information professionals, their data, and their systems serve as case studies for other professions and lead the way for libraries to better understand how to provide and support data services for their communities. The emergence of data and data services is occurring at an interesting time for libraries, archives, and museums (LAMs). Organizations like the Digital Public Library of America (DPLA) are designing new discovery systems that leverage library metadata and primary data sources in new ways. The emergence of data as a new service area and resource type is occurring at the same time libraries are questioning their traditional services, metadata, and systems. The DPLA's work is part of this change. As national and international digital libraries grow, their willingness to publish metadata in linked data formats will open doors for libraries and researchers alike. (Contains 1 figure.)