Depo Provera (3-Month Shot)
Feminist Women's Health Center's info on use, your health, advantages, disadvantages, preventing coercion, knowing your options.
Depo-Provera Injections
Emory University School of Medicine fact sheet lists advantages and disadvantages of the "birth-control shot".
Lunelle (Monthly Shot)
Feminist Women's Health Center's info on use, cautions, missed shots, advantages and disadvantages.