Our Mapas Project is being used as a test bed for a collaborative project between the Maryland Institute for Technology in the Humanities (MITH), Digital Humanities Observatory (DHO) of the Royal Irish Academy, and Indiana University, Bloomington, funded through a major grant from the National Endowment for the Humanities Preservation and Access: Humanities Collections and Resources program (research and development focus). Over two years TILE will develop a new web-based, modular, collaborative image markup tool for both manual and semi-automated linking between encoded text and image of text, and image annotation.The project is unusual in digital humanities tools development in that it is being designed from the start to support a wide variety of use cases. In addition to our Mapas Project, other initial testbeds include projects at the University of Indiana, Bloomington and Harvard’s Center for Hellenic Studies.