Shirley would like to learn how to use her computer. Leo says there's a good book in the "Dummies" series that are geared for Seniors. Computers for Seniors for Dummies is a good place to start. From the chatroom, AbbyandMe.com is a great site and there's a book on it called "Is This Thing On?"
Leo also suggests that Shirley go to the Apple store and get an iPad. They'll even teach her to use it. Most people who buy computers would be better off using an iPad anyway.