Battery jump start diagrams can be found at Dummies.com and DrivingMamas.com. Dummies is a site for the "For Dummies" series of books and has an article on how to jump start a car, including a diagram. It also has a range of topics and supplementary material related to its books.
Driving Mamas is a site dedicated to "the automotive lifestyle for women and dads." It offers instructions and a printout for jump starting a battery and also has articles on the maintenance and upgrading of vehicles, car reviews, articles on road trips and suggestions for purchasing vehicles. The site also has a news section for recent vehicle-related news.