[3] The network provides library patrons with access to check out and return items at member libraries,[4] interlibrary loans through the Massachusetts Board of Library Commissioners' Commonwealth Catalog,[5][6] mobile app access,[7] and access to electronic collections (including OverDrive).

[8][9] Member libraries are provided customized online catalog services, digital collections storage, internet and telecommunications services, email and Google Apps accounts for library staff, access to SirsiDynix software, and staff training.

[3] Approximately 70 percent of funding for SAILS comes from dues from member libraries, with the remaining portion coming from government subsidies and grants.

[14][15] The network uses SirsiDynix integrated library system (ILS) for staff function workflows: acquisitions, cataloging, circulation, ILL, and serials as well as for their patron's Online Public Access Catalog (OPAC).

[3] The libraries provide access to reference databases, digital libraries, access to free music online, museum passes, genealogy, workshops, and other free services that vary from each location.