A. Really neat websites about strange new things in mathematics:
                      * Feature columns from the AMS

  B. Useful handouts - background material on this and that, various problems, etc.
                            1. on Polynomials
                            2. on Infinite Series, Pigeon Holes, Congruences, etc.
                            3. on Barycentric Coordinates, Ceva's Theorem, etc - to be updated now and then
                            4. on Invariance - what stays the same
                            5. on Angles and Circles

 C. Other Collections of Problems
                            0.  Stan Wagon's problem of the week.
                            1.  Old Putnam exams, with some answers
                            2.  Old Science Atlantic Competitions
                            3.   Math central at the University of Regina: