Successful Contraception - An interactive guide to choosing a birth control method - Provided by the Association of Reproductive Health Professionals. This is a neat questionaire (also available in Spanish) that only takes 15 minutes at the most to complete. It then provides a list of birth control methods which would likely be good for you and the pros and cons of each. You can also get further information about each method.

Online Book: The Whole Truth About Contraception: A Guide to Safe and Effective Choices (1997) - This was a new one for me, a whole book published online. Clicking on the link will take you to the table of contents for the book. Easy to use and full of good information!

Family of the Americas - Natural Family Planning - This organization provides an overview of natural family planning on their website, along with anatomy and physiology information. They offer a wide variety of books and other materials to educate you and assist you in using the Ovulation Method of natural family planning. Also gives information on how to use natural family planning to conceive a child.