The Internet is not blind friendly. It sucks, and we need to do better, but for now, blind people are mostly locked out of the Internet. OS X has some really nice screen reading/accessibility stuff builtin and you can have it do things like read books from the iBook's Store out loud. Mail.app has some support for voice control if you're willing to get it all setup before giving her the computer.
Really? This day and age? No one in my life is blind, so I just assumed at least some minimally level of accessibility.
I wonder how many blind and sight-impaired people there are in the general population?