I may be attempting the impossible, but a good friend's mom is buying a Macbook this weekend which will actually be her first personal computer. She's an incredibly sharp woman and is computer competent, using them every day on the job as a RN at a major hospital. I've volunteered to get her router/internet set up and give her a 90 minute or so tutorial on how to use a Mac. My question is: what would be the best use of my time as far as things to show her in order? Also, is there a good book I could leave her with to answer any additional questions she might have? Note that she'll primarily be using the machine for web surfing, email, and Skype to talk to a daughter living overseas.