Discusses two models of selecting information sources--Cost/Benefit (information seekers select sources on basis of expected benefits and costs), and Least-Effort (seekers select sources on basis of minimizing effort or cost). Results of a study proposing that users place different weights on costs and benefits are presented. (EJS)

Findings from survey of information needs and habits of educational practitioners reveal that position, dissemination, and attitude are strong predictors of information use, education a moderate predictor. Information sources clustered into three factors: close at hand traditional sources, less accessible print sources, and organized interpersonal…

Data collected in the Federal District of Brazil were analyzed in terms of information transfer through mass media and interpersonal communication and how they influence farmers in the Federal District of Brazil in their decisions to adopt agricultural innovations. (42 references) (EAM)