Posted over on the Resort/Discount page:
Free dining will be extended beyond September. Bookings for these dates will begin August 1. The dates are below:
September 29 - October 2
October 18 - November 2
November 11 - November 23
December 12 - December 22
As usual, certain room types are excluded, such as campsites at Ft. Wilderness, 3-bedroom villas, and the Little Mermaid rooms at Art of Animation. A 3 night minimum stay (14 night maximum) and two day minimum park ticket is required for each person in the party.
Disney Value Resorts ~ Quick Service Dining Plan Included
(can be upgraded to regular plan)
All-Star Movies Resort
All-Star Music Resort
All-Star Sports Resort
Pop Century Resort
Art of Animation Resort (excluding Little Mermaid rooms)
Moderate Resorts ~ Regular Dining Plan Included
Carribean Beach Resort
Coronado Springs Resort
Port Orleans Resort French Quarter and Riverside
Deluxe Resorts ~ Regular Dining Plan Included
Animal Kingdom Lodge
Yacht & Beach Club Resorts
BoardWalk Inn
Contemporary Resort
Grand Floridian Resort & Spa
Polynesian Resort
Wilderness Lodge
Disney Deluxe Villa Resorts ~ Regular Dining Plan Included
Bay Lake Tower
Animal Kingdom Villas
Beach Club Villas
BoardWalk Villas
Old Key West Resort
Saratoga Springs Resort & Spa
The Villas at Disneys Wilderness Lodge
Fort Wilderness Cabins
These sources are quite good, and the same ones I got the September Free Dining, as well as the August-September Room Only Discounts that nobody else on the Dis even mentioned (and brought lots of relief to many late-August travelers as well).