A mixed media network for information interchange is what we are always likely to have. Amid the current permutations of the storage and distribution media we see the emergence of two trends -- toward the common denominators of electronic display on the TV system and of digital processing and control. The economic implications of a mixed network include operating cost efficiency through a principle of subsidiarity, some likelihood of materials redundancy, and a more miscellaneous equipment investment at local levels. Administrative implications are the complicated accessing, indexing and control procedures required, but these are accompanied by a decentralized utilization pattern with greater total system reliability. In order to facilitate the use of mixed media in networking functions four recommendations are made: (1) for improved standard-setting procedures; (2) for new research and subsidy in the areas of interface devices, the design of media bibliographic tools, and in review of experience gained during the picturephone development; (3) for subsidy of a national system of regional network depositories and (4) for subsidy of selected dual publication ventures assuring input of machine readable and accessible materials at the source, and for demonstrations of such materials in use. (Other papers from this conference are available as LI 003360 - 003376 and LI 003378 through LI 003390) (Author)