Some questions to ask yourself when evaluating a website:
As a general rule, websites ending in .gov, .org, .edu will likely provide the most accurate and up-to-date information.
Websites that end in .gov are affiliated with a government agency (federal, state, municipal). Those that end in .org are sponsored by an organization or association, and those sites that end in .edu are from an educational institution.
In order to restrict your Google search to government sites, for example, add site:gov after your search terms. (Example: "civil disobedience" site:gov)