Every time I see a web page that uses things like page-turning animations, I want to grab the person who designed it by the shoulders and say "THE WEB IS NOT A BOOK. THE WEB IS NOT A BOOK. THE WEB IS NOT A BOOK."

It's like a movie from 1910 that's just a camera pointed at a theatrical stage, or a radio show from 1930 that's just a microphone pointed at a big band, or a TV show from 1950 that's just a camera pointed at a bunch of radio actors. We keep dragging the habits of old media with us into the new, and they always hold us back until we muster the courage to discard them.