Eastman has one or more special interest groups. They are also called advocacy groups, pressure groups, lobby groups, and others. They work towards influencing public opinion and government policy. The people who are members of this group come together based on common political, faith, moral or commercial positions.Special interest may also refer to a collection of hobbies, items for sale or instruction classes for offbeat topics and skills, that may not be easily classifiable. These may also be present in Eastman. These are interesting, novel ideas and pursuits that one can also take up.