There has always been a " good " side to advertising in the from of pubilc service announcements (PSAs.). These are advertisements that provide people with in formation about issues like diseases or medical problems, as well as publichealth and safett. The commercials are often very creative and infor mative. they provide viewers with the information they need ina memorable way. Various companies pay for the PSAs, and advertising agencies make donations of their time and expertise to produce them.