Skimming Twitter found me this little gem of an article on fonts and reading comprehension: Hideous Fonts may boost reading comprehension. It makes for interesting reading and raises some rather terrifying points, some of which I've kind of run up against myself.
Namely the one on e-readers and reading comprehension. I've long since discovered that when I read on the computer, I'm reading faster; almost skimming, rather than reading. Not good, when it comes to reading articles or anything for a class, though alright when it's a novel. I'm not sure how it's going to play out with the Kobo to date.
Anyway, this is definitely an article worth reading.