What groups fought against the taxes and acts? Which group was most responsible for the actions taken against the British?

What time period are you talking about?

ooh.. right before the American Revolution?

Here are many sites that discuss/describe the causes that led to the American revolution:
http://www.google.com/search?q=causes+american+revolution&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7

Site that names and describes the factions (groups) during revolutionary times:
http://en.wikipedia.org/wiki/American_Revolution#Factions:_Patriots.2C_Loyalists_and_Neutrals

=)

During the time leading up to the American Revolution, there were various groups that fought against the taxes and acts imposed by the British government. These groups included the Sons of Liberty, the Committees of Correspondence, and other organized groups of patriots. However, it is important to note that there were also loyalists who supported the British government.

The group that was most responsible for the actions taken against the British was arguably the Sons of Liberty. This secret organization was formed in response to the Stamp Act in 1765 and played a crucial role in organizing protests and boycotts against British taxation. They were known for their acts of civil disobedience, such as the Boston Tea Party in 1773.

To find more detailed information about the groups that fought against the taxes and acts, as well as the specific actions taken by each group, you can refer to the provided Google search link. This search will lead you to numerous websites that discuss and describe the causes and events leading up to the American Revolution.

Additionally, the provided Wikipedia link offers information about the various factions during the revolutionary times, including Patriots, Loyalists, and Neutrals. This can give you a more comprehensive understanding of the different groups and their roles in the American Revolution.

Remember, always cross-reference information from multiple sources to ensure accuracy and a well-rounded perspective.