Last month, DC Comics announced the Blackest Night Ring promotion to retailers:

With BLACKEST NIGHT ramping up the danger across the DC Universe, DC Comics presents a full spectrum of BLACKEST NIGHT PROMOTIONAL RINGS, solicited in the September Previews!

Retailers may order the rings based on orders of BLACKEST NIGHT #5 and these November tie-in issues: JUSTICE LEAGUE OF AMERICA #39, BOOSTER GOLD #26, DOOM PATROL #4, ADVENTURE COMICS #4, R.E.B.E.L.S #10 and OUTSIDERS #24.

Later in August, DC stated "the promotional rings will ship on the same day as linked titles instead of the previously announced schedule."

The good news is, if you order comics online, you can still take advantage of this promotion!

The following titles can be ordered from TFAW, to be released November 2009. They all include a free Black Lantern Promotional Ring! Preorder them while you still can, as they are certain to go fast!

Doom Patrol #4 w/Yellow Lantern Ring	Booster Gold #26 w/Orange Lantern Ring	Rebels #10 w/Indigo Lantern Ring
Adventure Comics #4 w/Blue Lantern Ring	Outsiders #24 w/Violet Lantern Ring	Blackest Night #5 w/Green Lantern Ring
Justice League Of America #39 w/Red Lantern Ring