It might be helpful to have the 2006 promotions all in one place. (I charge enough taxes in a year to, with double miles, end up with a few free trips, so programs I don't even normally care about would be of interest if the deal is good enough).

United MP Visa - Double miles, with no limit, for all of 2006.

(Haven't yet heard from Starwood, which last year had a 5K limit, and time limit).

Please list mileage bonus (such as "double"), any cap on miles, any time limit (i.e., April 15, or all year), and any cap on earning for non-elite of an airline/hotel card.