The University of Maryland, Baltimore County (UMBC) uses a Blackboard course management system (CMS) to support faculty and students. To supplement the CMS, the university created a custom "Check My Activity" (CMA) self-service feedback tool for students. In addition to comparing their online course activity against a class average, students can check their activity and frequency of use against an anonymous summary of peers who earned the same, higher, or lower grade for any assignment (if instructors use the online gradebook). Although students did not adopt the tool quickly when it was announced in spring 2008, UMBC is seeing increased use and some encouraging initial results. Continued use of the CMA tool will provide more evidence testing the hypothesis that peer comparisons can perhaps influence student meta-cognition, or what is sometimes described as "thinking about thinking." This article provides a five-minute video demo which shows how the tool works, with some updates that followed acceptance for publication of a research article on the project in "The Internet and Higher Education." (Contains 2 endnotes.)