In Pittsburgh, our local situation has been unique in that both public and academic librarians work actively in close collaboration with other civic data publishers and users. Our librarians regularly partner with local governments, non-library intermediaries, civic organizations, student organizations, and data users in a variety of ways. They play a number of roles, including helping people discover civic information, building data literacy and technical skills, providing technical assistance in data management and documentation, creating feedback mechanisms to publishers, convening and hosting events, and connecting data users. Our experience shows that libraries and librarians should act as data intermediaries and play key roles in the continuing development of civic open data. Their expertise provides insights on a wide range of issues that affect both data publishers and users.