As we go to press, only American Airlines is offering a bonus for online award redemption. Go to http://www.aa.com, book your award, and watch 1,000 miles appear.
Northwest WorldPerks is no slouch either, offering a 1,500-mile discount on awards booked through http://www.nwa.com.
The other big boys? Nothing much happening on the award-booking side. Continental, Delta and US Airways, however, are offering 1,000 mile bonuses for purchases made on their respective Web sites.