<P> A total of about 7,000 to 8,000 Patriots served on these committees at the colonial and local levels, comprising most of the leadership in their communities--the Loyalists were excluded . The committees became the leaders of the American resistance to British actions, and largely determined the war effort at the state and local level . When Congress decided to boycott British products, the colonial and local committees took charge, examining merchant records and publishing the names of merchants who attempted to defy the boycott by importing British goods . </P> <P> The committees promoted patriotism and home manufacturing, advising Americans to avoid luxuries, and lead a more simple life . The committees gradually extended their power over many aspects of American public life . They set up espionage networks to identify disloyal elements, displaced the royal officials, and helped topple the entire Imperial system in each colony . In late 1774 and early 1775, they supervised the elections of provincial conventions, which took over the actual operation of colonial government . </P> <P> A major function of the committees in each colony was to inform the voters of the common threat faced by all the colonies, and to disseminate information from the main cities to the rural hinterlands where most of the colonists lived . As news was typically spread in hand - written letters or printed pamphlets to be carried by couriers on horseback or aboard ships, the committees were responsible for ensuring that this news accurately reflected the views of their parent governmental body on a particular issue and was dispatched to the proper groups . Many correspondents were also members of the colonial legislative assemblies, and were active in the secret Sons of Liberty or even the Stamp Act Congress of the 1760s . </P> <P> The earliest committees of correspondence were formed temporarily to address a particular problem . Once a resolution was achieved, they were disbanded . The first formal committee was established in Boston in 1764 to rally opposition to the Currency Act and unpopular reforms imposed on the customs service . </P>

What was the primary task of the committees of correspondence