The Main Library Alliance is a network of 49 public libraries located in northern New Jersey. Established in 1979, Main's mission is to lead and encourage collaboration, resource sharing, staff development, and innovation by providing high-quality, cost-effective shared services to member libraries. They aspire to help member libraries and their communities readily access a diverse and innovative selection of enriching, entertaining, and informative resources.

Main provides its patrons with access to over 3. 1 million items, including eBooks, eAudiobooks, Blu-rays, DVDs, music, museum passes, video games, and, of course, books. In addition to a vast collection, Main libraries offer a wide range of programming, public meeting space, research assistance, lectures, cultural events, public classes, art exhibitions, and more.

The alliance aims to enhance the value of every member library through high-quality shared services and technology, fostering development opportunities and partnerships within the community. As Main Library Alliance's membership expands, they aim to maximize return on investment on tax dollars, provide improved access to a greater amount of materials, and focus on innovation. They invite libraries to explore membership opportunities by contacting the central office