Why votes and ratings? While I think I understand what you mean, wouldn't you agree that votes play into a system in which the early-released and popular end up shadowing some of the other great content?

Which is to say, things that you find interesting may not be what I find interesting (or why easy, large-generalist-audience CSS questions become so popular on stackoverflow).

These are from the first day of talks and a few of the tutorials. The second day is going on now, so they should be online in a day or two.