The Stamp Act Congress, consisting of delegates from nine colonies, met in New York to organize united resistance to the Stamp Act. It called on the colonies to protest the act by refusing to import goods that required purchase of a stamp.
The Sons of Liberty was a secret organization formed in opposition to the Stamp Act in the summer of 1765. Lead by Samuel Adams, Paul Revere, and others, the Sons of Liberty coordinated colonial resistance to British tyranny using petitions, propaganda, and public assembly. First formed in Boston, local Sons of Liberty organizations were soon established throughout the colonies.