Pioneer Valley Railroad - Short line railroad system serving industries in the cities of Westfield and Holyoke. - http://www.pvrr.com/general_info.html
State Representative Cele Hahn - Weekly commentary by local Republican representative. Includes biography, photos of events, and contact information with complete archive of columns. - http://www.celehahn.org/
Hampden County Radio Association - Membership organization of amateur radio operators which provides nonprofit public service communication support to local events, groups and schools. - http://www.hcra.org/
MapStats: Hampden County - Statistics for the county, including agricultural, population, immigration, demographics, business, crime, energy, and environment. - http://www.fedstats.gov/qf/states/25/25013.html