An interest group is a group that seeks a collective good, the achievement of
which will not selectively and materially benefit the membership or activists of the
organization. These organizations try to achieve at least some of their goals with
government assistance. The difference between interest groups and political parties is that
political parties seek to constitute the government, whereas interest groups try only to
influence it. Some of the things that interests groups seek from government are
information that affects the interests of the interest group, influence of the
government policy, goodwill of the administrators who carry out the policy, and symbolic
status. Some of the sources of interest group strength are the size of the interest group,
cohesion between the members, geographical distribution, wealth of the members, status
of the group, leadership of the group, and program compatibility. Some of the direct
techniques for gaining influence are lobbying, private meetings, legislative committees,
and bureaucracy. Some indirect techniques are grass roots lobbying, molding public and
elite opinion, and coalition building.
Grass roots lobbying is when the constituency of an interest group-a group's
members, those whom the group serves, friends and allies of the group, or simply those
who can be mobilized whether or not they have a connection to the group-can help in
promoting the group's position to public officials.
Groups use public relations techniques to shape public opinion as well as the
opinions of policymakers. Ads in newspapers and magazines and on the radio and
television supply information, foster an image, and promote a particular policy. A tactic
commonly used by interest groups to influence public opinion is rating members of
Congress. Groups choose a number of votes crucial to