Why Digg doesn’t sell

Howard Linzdon says:

Digg is truly the most useless of the big Web 2.0 sites. It won’t make you money and it can’t make money…

If they are truly up for sale and they have not gotten a deal done during this web 2.0 binge, they are on their way to smaller founder returns.

If Digg is “the most useless” than can we see a list of the “next most useless”? Along with projected returns for founders (and Series A, B, and C investors)?

Or does that whole “making money” part make the list just too darn big to consider?