As one would expect, the marketing program for United Way to date has been very simple. The national office was responsible for coordination, long-range planning, and providing some services to the approximately 2,100 local United Ways in the United States and Canada. Headquarters furnished the local organizations with technical support for local campaigns and tried to build and maintain good relations with large corporations. More specific activities had to do with the development and production of films and other materials for use by voluntary solicitors and the media, development and production of planning and budgeting manuals, review of national agency programs, publication of various newsletter series, training of locals in management techniques and fund raising, maintenance of a lending library of pertinent reports, and the execution of public opinion and market research. For example, one research effort found a direct correlation between contributor knowledge of United Way and support.