This paper reviews the informational behavior of a community of university students during the development of a learning activity with a wiki. Through a case study, analyzes the data available on the wiki, and identifies patterns of creating and organizing content. The wiki study is also done within the information management framework proposed by Rowley. The findings support the conclusion that students apply the principle of economy of effort in their informational behavior, guided by the assessment requirements of that activity, and Rowley's proposal is not suitable for analyzing and evaluating educational processes technologically mediated