An Online Ivy?

Anya Kemenetz profiles TED:

[It is:] creating a new Harvard -- the first new top-prestige education brand in more than 100 years. Of course TED doesn't look like a regular Ivy League college. It doesn't have any buildings; it doesn't grant degrees. It doesn't have singing groups or secret societies, and as far as I know it hasn't inspired any strange drinking games.

Still, if you were starting a top university today, what would it look like? You would start by gathering the very best minds...