... first the debate at the Britannica Blog.
... then a piece in today's NYT: Literacy Debate: Online, R U Really Reading? (Hat tip, Dave Lull, Lee Lowe, and Judith Fitzgerald.)
... and this, which inject some facts - as opposed to anecdotes - into the debate: It's the screens, not the internet, that are making us stupid. (Hat tip, Lee Lowe.)
I don't for a moment buy the idea that reading electronically in any way diminishes the capacity to read print. I read lots of both and notice know difference (I know, that's anecdotal; but it's also what I've experienced - ooh, I just used a semicolon).