The Physics Classroom: 20,000 per day and growing

The Physics Classroom is one of the most widely used physics web sites for introductory physics. Started in 1997 by students and teachers in Illinois, this site is widely recognized by high school teachers all over the country. Last year the author of the site and ComPADRE partnered to create a home for these materials because of a loss a commercial sponsor and the load in the school's servers. The results of this collaboration will be explored in this poster including the growth in usage, the expansion and update of the materials available to the general public, and plans for future growth, connections to the central library, and sustainability.