Commonwealth of Massachusetts

Massachusetts Registry of Motor Vehicles ~ RMV Online Service Center
http://www.massrmv.com/ 

Plate return
https://secure.rmv.state.ma.us/platereturn/intro.aspx

Massachusetts Motor Vehicle Sales/Use Tax Forms
http://www.mass.gov/dor/forms/motor-vehicle-sales-use/

Massachusetts Division of Insurance
http://www.mass.gov/ocabr/insurance/

Auto Insurance

Automobile Insurers Bureau of Massachusetts
https://www.aib.org/ContentPages/Public/default.aspx

Ways to Save on Your MA Auto Insurance
http://www.mass.gov/ocabr/insurance/vehicle/auto-insurance/saving-money-on-auto-ins/

Car Buying

Edmunds Car Buying Guide
https://www.edmunds.com/

Kelly Blue Book Car Values
https://www.kbb.com/

N.A.D.A. Used Car Guide
http://www.nada.com/

Car Fax Used Car Guide
https://www.carfax.com/

Carco Inspection Services
http://www.cisive.com/vehicle_inspections-inspection-center-locator.php