Science, August 2, reports on Net traffic jams and various schemes to ease the flow, including pricing correlated to speedier service. See: http://www.sciencemag.org/science/scripts/display/full/273/5275/585b.html The report is part of a special section on computer use in science, with three others on the Internet. For the full section see: http://www.sciencemag.org/science/scripts/display/full/273/5275/585.htm