onomy.org is a tool designed to allow collaborative creation of taxonomies, folksonomies, and other controlled vocabularies for use in semantic web applications. Built as part of a larger linked data system for the Media Ecology Project, onomy.org is a focused, standalone tool that enables sharing of vocabularies across disparate research platforms using JSON, RDF, and plain HTML. In doing so, onomy.org fulfills a crucial role in online research: making sure that everyone in a research group is on the same page no matter what piece of software they are using.