The Acts and Resolves, which contains the session laws and resolves passed by the legislature, is among the State Library’s most highly used resources. Earlier volumes (pre-1900) have interesting supplemental material, including governor’s addresses, list of those who had a change of name and lists of state governmental officials. Volumes dating back to 1692 have been digitized and available in two different locations:
State Library’s DSpace Repository (1892 to 2009): Best for searching for an act. Each act is in its own file for faster searching and retrieval.
Internet Archive (1692 to 1959): Best for searching for a resolve or looking at supplementary material.
General Court Website: Best source for recent (2010-2012) acts.
This information is provided by The State Library of Massachusetts.