This grant provide 14 months of support for the Hypothes.is Project, a web annotation platform that aims to bring granular annotation of online scholarly materials to users through the development of an easy-to-use interface that makes web annotation fully collaborative, shareable, and searchable.  Grant funds will support continued development of the Hypothes.is platform as well as three pilot implementations, one at the American Geophysical Union, one at the arXiv preprint repository, and one at eLife, an influential online journal sponsored by the Wellcome Trust and the Howard Hughes Medical Institute.  Additional funds support a 2014 summit for Hypothes.is stakeholders to ensure compliance with current and forthcoming standards set by the World Wide Web Consortium.