To help our students judge the quality of the results it would be good if the journal's impact factor could be displayed in the results. Or even better, provided as a sorting or limiting option so that students could view results in those journals with the highest impact factor, in the same way they can limit by peer review. Although impact factors are not a perfect tool, it would help get the message across that not all journals are equal. This feature would probably need to be restricted to those libraries with a subscription to JCR.