A couple of years ago, in preperation for a planned family purchase of a pc or maybe iMac for my gran, I gave her a brief introduction to the type of things she could do online (that would be of interest to her), despite multiple falling asleeps while I was showing her she did get really interested and started doing stuff on her own for a bit. They never got round to getting her a computer, real shame as I know she'd like to be able to keep up with all the grandchildren on facebook, even if she gets put on a limited profile by most. She's 97 this year.