Traditional Chinese Medicine Information Page
- A brief and simplistic overview of TCM approaches to treating irregular periods with Chinese herbal medicine.
- http://www.tcmpage.com/hpirregular_period.html

Lady Timer
- Menstrual cycle calendar reminders for cell phones to help women track period days and most fertile days. Learn about this free service.
- http://ladytimer.com/

Tampaction
- A campaign to replace tampons with healthy alternatives and to create positive attitudes towards menstruation and women's bodies.
- http://www.seac.org/tampons/

MyMonthlyCycles
- Online calendar for tracking menstrual and fertility cycles and symptoms. Includes a period prediction calculator and menstruation charts.
- http://www.mymonthlycycles.com

eMedicine Health - Menstrual Pain
- Consumer health resource center providing information on the causes, symptoms, and treatment.
- http://www.emedicinehealth.com/articles/6783-1.asp

Menstrual Disorders
- Explains the irregular menstruation cycle including abnormal menstrual bleeding and missed periods. Notes common diagnoses and treatments for menstrual disorders.
- http://www.menstrual-disorders.com

Menstrual Delay or Skipping
- Answers to frequently asked questions about irregularities in the menstrual cycle, particularly late or skipped periods.
- http://www.wdxcyber.com/mmdelay.htm

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.
- http://www.fwhc.org/health/moon.htm

KotexFits
- Offers advice a woman needs about periods, menstruation, health and well being, and PMS. Includes maternity and menopause.
- http://www.kotexfits.com

The Sacred Cycle
- A powerful and transformational work which addresses what it is to be female. It empowers women by embracing the biological cycle and dispels the negative programming women receive from society.
- http://www.sacredcycle.com

About.com: Menstruation
- Menstration covers the basics for young women, as well as details of what you should expect and when bleeding is excessive.
- http://womenshealth.about.com/msub31.htm

My Period Trends
- Calculate and print out your mentruation cycle period. Set reminder via email.
- http://period.nyws.com

Finding Out Why Your Periods are Abnormal
- Information on the causes of missing, irregular or otherwise abnormal menstruation.
- http://www.ivf.com/ch12mb.html

The Cycles Page
- A web-based application for tracking and predicting monthly menstrual periods.
- http://www.cyclespage.com/

Ruth's Page
- Tampons - what you don't know could hurt you.
- http://www.frontiernet.net/~ruthb

The TLounge
- A place where young women can find answers about menstruation.
- http://www.tlounge.com

Menstruation
- Or, who says women can't stand the sight of blood? by Alana Wingfoot.
- http://www.io.com/~wwwomen/menstruation/index.html

The Red Spot: Menstrual Culture
- The Red Spot is an information source for women and girls about their periods.
- http://onewoman.com/redspot/

Museum of Menstruation and Women's Health
- Articles, images, humor, and other resources about the cultural history of menstruation, methods of managing it, and related aspects of female health.
- http://www.mum.org/