So far, here's the list of canceled shows:
Alcatraz (FOX)
Allen Gregory (FOX)
Are You There Chelsea? (NBC)
Awake (NBC)
Bent (NBC)
Best Friends Forever (NBC)
Bored to Death (HBO)
Blue Mountain State (Spike TV)
Breaking Bad (AMC)
Breaking In (FOX)
Cash Cab (Discovery)
CHAOS (CBS)
Charlie’s Angels (ABC)
Chuck (NBC)
The Closer (TNT)
Combat Hospital (ABC)
Damages (DirecTV)
Desperate Housewives (ABC)
Eureka (Syfy)
Extreme Makeover: Home Edition (ABC)
The Finder (FOX)
The Firm (NBC)
Free Agents (NBC)
Friends with Benefits (NBC)
GCB (ABC)
A Gifted Man (CBS)
Good Vibes (MTV)
H8R (The CW)
The Hard Times of RJ Berger (MTV)
Harry’s Law (NBC)
HawthoRNe (TNT)
House (FOX)
How to Be a Gentleman (CBS)
Hung (HBO)
I Hate My Teenage Daughter (FOX)
The Increasingly Poor Decisions of Todd Margaret (IFC)
Lopez Tonight (TBS)
Love Bites (NBC)
Luck (HBO)
Man Up! (ABC)
Memphis Beat (TNT)
Men of a Certain Age (TNT)
Missing (ABC)
Napoleon Dynamite (FOX)
One Tree Hill (The CW)
Pan Am (ABC)
The Playboy Club (NBC)
Prime Suspect (NBC)
Re-Modeled (The CW)
The Revolution (ABC)
Ringer (The CW)
The River (ABC)
The Rosie Show (OWN)
The Secret Circle (The CW)
State of Georgia (ABC Family)
Take the Money and Run (ABC)
Terra Nova (FOX)
Work It (ABC)
Fringe (FOX) has been renewed for a fifth and final season.
Gossip Girl (The CW) has been renewed for a final season 6
30 Rock (NBC) has been renewed for a 7th (final) season.
Cougar Town (ABC) was canceled, but will move to TBS for at least a 4th season of 15 episodes.
http://tvseriesfinale.com/?p=22924
If you enjoyed Flashpoint (CBS), it will continue season 4 on ION
http://tvseriesfinale.com/?p=20725