http://www.seac.org/tampons has a lot of good information.... "menstruator's health" on the left is what you want, i believe
ooh! *exciting* i just discovered the beauty of flannel!! until a couple hours ago... i was scared to actually use my flannel, for fear of failure (i have, seriously, no money)... but i made the bloodsisters one... liked it alot, but did it wrong the first time (still useable though, thanks to random burst of genius)... but flannel!!! oh man... i can't wait to use this one!