Ballotpedia describes itself as an online encyclopedia of American politics and elections. Its goal is to inform people about politics by providing accurate and objective information about politics at all levels of government. They are committed to neutrality and objectivity; articles are written by its staff. It provides information on elections and candidates at the local, state, and federal level.
VoteSmart this organization's mission is to provide free, factual, unbiased information on candidates and elected officials. It's a compendium of all types of information to help voters. The site includes information to help voters evaluate candidates using these objective criteria: voting records, issue positions, interest group ratings, public statements, and campaign finance data. The site also includes biographical and contact information for candidates running for office at all levels of government. It also publishes the Voter's Self Defense Manual. The manual is published every two years, so a new manual providing information on 2018 elections will be published shortly.
The Secretary of the Commonwealth of Massachusetts publishes information about voting and elections through the Massachusetts Elections Division.
League of Women Voters of Massachusetts has information about current ballot questions, who is running for office, and elected officials.