Sarah Shreeves says one of the key things she has learned in her work as IDEALS Coordinator at University of Illinois at Urbana-Champaign is that “involving library liaisons in the [repository development] process as early as possible can create some really big wins. Our most successful communities are the ones that the subject selectors are really spearheading” by talking with faculty about scholarly communication issues, author rights, and data storage and management opportunities while also identifying gray literature for addition to the repository. She credits library subject selectors with helping to build a sense of community and spreading the responsibility for building relationships that support repository growth.