BankOne, Citibank and MBNA Worldpoints all offer mileage credit cards with no annual fee, and whose miles are redeemable on any major carrier. Citibank at one point recently was offering a x5 multiplier for daily uses like gas and groceries.
This site seems largely outdated and useless. I would appreciate help in a private message if there is a better way to zero in only on threads that have recent posts. I've altered my settings to show only more recent posts, but I don't see a way to look at a "table of contents" of the threads and sort them without visiting the thread first.