About.com: Menstruation
Menstration covers the basics for young women, as well as details of what you should expect and when bleeding is excessive.
womenshealth.about.com Details

All about Menstruation - from FWHC
What really happens during those 28 days? All about ovulation, hormones, cycles, PMS, Menopause, fertility awareness, and customs and traditions of various cultures.
www.fwhc.org Details

Alldays
Offers details about the panti liner, products available and contact information.
www.alldaysinfo.co.uk Details

Always
Offers information about their product, the string tanga.
www.always-string.co.uk Details

Always a Woman
This is a good site for mothers and daughters to explore together.With pages for each,You can find the answers that you both are looking for.
always.com Details

Am I Normal?
by Alana Wingfoot
www.io.com Details

Dittie Premium Feminine Protection
Online community for beginning menstruation with stylish fun for women and girls.
www.dittie.com Details

Finding Out Why Your Periods are Abnormal
Information on the causes of missing, irregular or otherwise abnormal menstruation.
www.ivf.com Details

It's My Body
Site for women by Stayfree.
www.cyclesofwellness.com Details