A second survey of school media services in Iowa was conducted in 1980 in order to measure trends and determine the degree to which schools have met new media services guidelines. The survey instrument included many of the same questions as the questionnaire used for the original study in 1976. One major focus of the data interpretation was the number of school library media centers meeting and not meeting specific quantified guidelines set forth in Phase I of Plan for Progress, K-6 and Plan for Progress, 7-12, which were revised after the first survey was completed; changes in guidelines are noted. The total number of quantified guidelines met by each school media center was the second major focus, while the third was concerned with averages, ranks, percentiles, and ratios. When this information is related to quantified guidelines, it is presented with the discussion of the pertinent guidelines. Data not related to guidelines are discussed separately, and general interpretations and conclusions close the report. Appended tables display detailed data on the range of standards met for materials, equipment, staff and budget, support staff, expenditures, and facilities; comparisons with 1976 data are also provided. (Author/LMM)