Oregon State University (OSU) Libraries participated in Open Access (OA) Week in 2009 and 2010. In order to expand the range of events offered, the committee members assigned to program planning looked for opportunities to work with partners beyond the library. The collaborative activities developed through these partnerships created settings for in-depth conversations among librarians, faculty, and students about scholarly communication issues. Subject librarians’ relationships with their departments provided opportunities to host events in venues other than the library, which helped, facilitate access to a diverse audience. An established cooperative relationship with the University of Oregon made it possible to provide additional presentations to the OSU community. An evaluation of the quantity and quality of contacts made during OA Week suggests the collaborative activities enriched these outreach activities and that participation in OA Week is worthwhile for OSU Libraries to continue.