Now free: citation data from 14 million papers, and more might come | Science | AAAS

"Enter the Initiative for Open Citations (I4OC), a project aiming to make citation data free to all, formally announced today by six organizations, including the Wikimedia Foundation, publisher Public Library of Science, and the open-access journal eLife. So far, the initiative has partnered with 29 journal publishers to enable anyone to access citation data from about 14 million papers indexed by Crossref, a nonprofit collaboration that promotes the sharing of scholarly information."