MathsNet enables students to study their Mathematics course online. There are currently around 12,000 pages of content ranging from illustrations and explanations to nearly 5000 fully worked exam questions and 1,800+ o-tests (on-line assessments). Almost every page is interactive offering much more than simply an online text book. Students can use the exam questions to create and print out their own topic tests, mock exams, revision materials and class or homework tasks, all complete with mark schemes. For teachers, MathsNet offers a full student assessment system to keep track of how their students are performing.