Date: 2008-09-15 11:07 pm (UTC)
From what I understand, he does use the internet but he doesn't email because of some damage to his body that he got while a POW. Which he mentioned in an interview with the Boston Globe in 2000 (http://graphics.boston.com/news/politics/campaign2000/news/McCain_character_loyal_to_a_fault+.shtml) as well as a Forbes article from the same year (http://www.forbes.com/asap/2000/0529/053_print.html) where he says:

In certain ways, McCain was a natural Web candidate. Chairman of the Senate Telecommunications Subcommittee and regarded as the U.S. Senate’s savviest technologist, McCain is an inveterate devotee of email. His nightly ritual is to read his email together with his wife, Cindy. The injuries he incurred as a Vietnam POW make it painful for McCain to type. Instead, he dictates responses that his wife types on a laptop. “She’s a whiz on the keyboard, and I’m so laborious,” McCain admits.

Honestly, that's just tacky (or at the very least really bad research) on the Obama campaign's part. Plus the fact that there are a lot of older people who don't use the internet, but that might get offended by that add. Pissing off a voting block by making cracks about age just doesn't make much strategic sense to me.
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