Anyone participating in the "Milesbar" site should take note (especially those paying $12.95 per month for "elite" levels).
Milesbar shows, on their opening webpage screen, the Northwest Airlines logo (rotating with other airline logos). Also, under the FAQ Section, "Elite Platinum Membership Questions," "Q: How can I transfer miles to my designated frequent flyer program account" ... milesbar states in the next question "The 1-to-1 ratio applies to the frequent flyer programs of Continental, NORTHWEST, (other airlines).
According to Mary Beth Schubert, Director of Corporate Communications of Northwest Airlines, "NORTHWEST AIRLINES DOES NOT PARTICIPATE IN MILESBAR."