http://tags.library.upenn.edu/tag/tagging+library PennTags Feed for /tag/tagging+library PennTags Feed http://tags.library.upenn.edu/makerecord/url/628 http://tags.library.upenn.edu/makerecord/url/628 Social Terminology Enhancement through Vernacular Engagement: Exploring Collaborative Annotation to Encourage Interaction with Museum Collections article on museums' use of tagging to help users access images (community cataloging, they say)