All Jovian planets have rings. We are most familiar with the bright, spectacular rings of Saturn, but the other Jovian planets have rings systems around them. This lecture describes the different ring systems and their properties, and discusses their origin, formation, and the gravitational interactions - resonances, perturbations, and shepherd moons - that govern their evolution. Recorded 2007 Nov 21 in 1000 McPherson Lab on the Columbus campus of The Ohio State University.