Mid-Hudson Library System
Since 1959, the Mid-Hudson Library System (MHLS) has acted to ensure the public's right to free access, facilitate economical resource sharing, and promote professional library services while working in partnerships with the independent public and free association libraries in the Hudson Valley of New York State in the USA.
MHLS comprises dozens of libraries  in five counties: Columbia County, Dutchess County, Greene County, Putnam County and Ulster County. The System's headquarters is based in the city of Poughkeepsie, New York.
- Mid-Hudson Library System
- List of member libraries
- Online Public Library Catalog
- MHLS Weekly Bulletin