Mathematica discussion group. (Moderated) Readers: 6000 (0.1%) {25%} Mesgs per month/day: 259/9 {34%} Crossposting: 0% {8%} Megs per month/day: 0.5/0.017 {41%} Sites reciving this Group: 46% Cost ratio ($US/month/rdr): 0.04