The CW has released an official synopsis of the mid-season finale and last episode of this year.
7.10 - "Death's Door"
Written by: Sera Gamble.
Directed by: Robert Singer.
Airs: Friday, December 2nd, 2011 at 9/8c

The CW released a few clips of the episode
"7.08 - Season 7, Time for a Wedding".

Dean goes on a hunt, and Sam becomes the groom, but who is the lucky bride?

Airs: Friday November 11th, 2011 at 9/8c

Sam, Dean and Bobby go on a strange monster hunt.
The CW has released 14 episode stills of
"How to Win Friends and Influence Monsters"
Written by: Ben Edlund
Directed by: Guy Bee
Airs: Friday, November 18th at 9/8c.

Are you ready for Wedding Bells in Supernatural?
The CW has released 4 episode stills of
7.08 – "Time for a Wedding"
Written by: Andrew Dabb & Daniel Loflin
Directed by: Tim Andrew
Airs: Friday, November 11th at 9/8c.

The CW released a few preview clips of the episode
"7.07 - The Mentalists".
Sam & Dean discover an angry spirit is killing off the psychics one by one in a town full of people who claim to be summoning spirits.
Airs: Friday November 4th, 2011 at 9/8c

Sam & Dean visit a town full of psychics
The CW has released 3 episode stills of
7.07 – "The Mentalists"
Written by: Ben Acker & Ben Blacker
Directed by: Mike Rohl
Airs: Friday, November 4th at 9/8c.