It was so popular here, to teach babies sign language few years ago. I can still remember about 100 signs that I learnt from internet (FOC) to teach my children.
Sign With Me Cheat Sheet
http://www.signwithme.com/images/SWM_cheat_sheet.jpg
My Favourite (American Sign Language)
http://www.lifeprint.com/
Try their free printable flash cards
http://www.babysignlanguage.com/
