Periodically, the Math Forum runs anonymous interactive surveys to collect information about how visitors to the Math Forum are using the site. We're about to run a new one, which will appear automatically when you visit many of the most popular site pages, including the Problems of the Week, for two weeks.
While you are in no way obligated to fill out the survey, we'd appreciate it you AND your students would take a few moments to do so. The more we know about how people use the site, the better we can make it.
Thanks! And thanks for your continued support of our projects.