Works of the "past masters" might be part of the art instructor's curriculum, but not mine. Perhaps some of my students already frequent this site at home, but there's no way I would let them view this site at school. Besides, as of earlier this year, a bill was signed into law to the effect that any educational institution that receives federal funding in whole or in part have an Internet filtering system in place by this past September 1st as part of the Child Protection Act. Needless to say, sites such as Renderosity are already off-limits.