Social Studies and History curriculum in K-12 education.
Readers: 2900 (0.1%) {5%} Mesgs per month/day: 147/5 {24%}
Crossposting: 14% {50%} Megs per month/day: 0.3/0.010 {32%}
Sites reciving this Group: 29% Cost ratio ($US/month/rdr): 0.02