I know that there are quite a few active users in this spot (and that's a good thing!) and I noticed that a lot of screencaps have already been uploaded.
I already did this in the Criminal Minds spot and in other CM related spots and I thought I should do this in this one too.

I think it's very helpful because this way, instead of having to go through lots of pages just to see if the screencaps from a certain episode have already been uploaded or not, you can just check this forum and easily know which episodes have already been uploaded (and this way, we can avoid those situations when someone uploads the same things you did).

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Already Uploaded

-Season 1 Episode 01 – “Extreme Agressor”
-Season 1 Episode 02 – “Compulsion”
-Season 1 Episode 03 - "Won't Get Fooled Again"
-Season 1 Episode 04 - "Plain Sight"
-Season 1 Episode 06 - "L.D.S.K."
-Season 1 Episode 07 - "The Fox"
-Season 1 Episode 08 - "Natural Born Killer"
-Season 1 Episode 09 - "Derailed"
-Season 1 Episode 10 - "The Popular Kids"
-Season 1 Episode 11 - "Blood Hungry"
-Season 1 Episode 12 - "What Fresh Hell?"
-Season 1 Episode 13 - "Poison"
-Season 1 Episode 14 - "Riding the Lightning"
-Season 1 Episode 15 - "Unfinished Business"
-Season 1 Episode 16 - "The Tribe"
-Season 1 Episode 17 - "A real rain"
-Season 1 Episode 18 - "Somebody's Watching"
-Season 1 Episode 19 - "Machismo"
-Season 1 Episode 20 - "Charm and Harm"
-Season 1 Episode 21 - "Secrets and Lies"
-Season 1 Episode 22 - "The Fisher King: Part I" (Season Finale)

-Season 2 Episode 01 - "The Fisher King Part II"
-Season 2 Episode 02 - "P911"
-Season 2 Episode 03 - "The Perfect Storm"
-Season 2 Episode 04 - "Psycodrama"
-Season 2 Episode 05 - "The Aftermath"
-Season 2 Episode 06 - "The Boogeyman"
-Season 2 Episode 07 - "North Mammon"
-Season 2 Episode 08 - "Empty Planet"
-Season 2 Episode 09 - "The Last Word"
-Season 2 Episode 10 - "Lessons Learned"
-Season 2 Episode 11 - "Sex, Birth, Death"
-Season 2 Episode 12 - "Profiler, Profiled"
-Season 2 Episode 13 - "No Way Out"
-Season 2 Episode 14 - "The Big Game"
-Season 2 Episode 15 - "Revelations"
-Season 2 Episode 16 - "Fear and Loathing"
-Season 2 Episode 17 - "Distress"
-Season 2 Episode 18 - "Jones"
-Season 2 Episode 19 - "Ashes and dust"
-Season 2 Episode 20 - "Honor among thieves"
-Season 2 Episode 21 - "Open Season"
-Season 2 Episode 22 - "Legacy"
-Season 2 Episode 23 - "No way out, Part II" (Season Finale)

-Season 3 Episode 1 - "Doubt"
-Season 3 Episode 2 - "In Birth and Death"
-Season 3 Episode 3 - "Scared to Death"
-Season 3 Episode 4 - "Children of the Dark"
-Season 3 Episode 5 - "Seven seconds"
-Season 3 Episode 6 - "About Face"
-Season 3 Episode 7 - "Identity"
-Season 3 Episode 8 - "Lucky"
-Season 3 Episode 9 - "Penelope"
-Season 3 Episode 10 - "True Night"
-Season 3 Episode 11 - "Birthright"
-Season 3 Episode 12 - "3rd Life"
-Season 3 Episode 13 - "Limelight"
-Season 3 Episode 14 - "Damaged"
-Season 3 Episode 15 - "A Higher Power"
-Season 3 Episode 16 - "Elephant's Memory"
-Season 3 Episode 17 - "In Heat"
-Season 3 Episode 18 - "The Crossing"
-Season 3 Episode 19 - "Tabula Rasa"
-Season 3 Episode 20 - "Lo-Fi" (Season Finale)

-Season 4 Episode 01 - "Mayhem"
-Season 4 Episode 02 - "Angel Maker"
-Season 4 Episode 03 - "Minimal Loss"
-Season 4 Episode 04 - "Paradise"
-Season 4 Episode 05 - "Catching Out"
-Season 4 Episode 06 - "The Instincts"
-Season 4 Episode 07 - "Memoriam"
-Season 4 Episode 08 - "Masterpice"
-Season 4 Episode 09 - "Pickup"
-Season 4 Episode 10 - "Brothers in Arms"
-Season 4 Episode 11 - "Normal"
-Season 4 Episode 12 - "Soul Mates"
-Season 4 Episode 13 - "Bloodline"
-Season 4 Episode 14 - "Cold Comfort"
-Season 4 Episode 15 - "Zoe's Reprize"
-Season 4 Episode 16 - "Pleasure is my business"
-Season 4 Episode 17 - "Demonology"
-Season 4 Episode 18 - "Omnivore"
-Season 4 Episode 19 - "House of Fire"
-Season 4 Episode 20 - "Conflicted"
-Season 4 Episode 21 - "A Shade of Gray"
-Season 4 Episode 22 - "The Big Wheel"
-Season 4 Episode 23 - "Roadkill"
-Season 4 Episode 24 – “Amplification”
-Season 4 Episode 25 & Episode 26 - "To Hell...and back" (Season Finale)

-Season 5 Episode 01 - "Nameless, Faceless"
-Season 5 Episode 02 - "Haunted"
-Season 5 Episode 03 - "Reckoner"
-Season 5 Episode 04 - "Hopeless"
-Season 5 Episode 05 - "Cradle to Grave"
-Season 5 Episode 06 - "The Eyes Have it"
-Season 5 Episode 07 - "The Performer"
-Season 5 Episode 08 - "Outfoxed"
-Season 5 Episode 09 - "100"
-Season 5 Episode 10 - "The Slave of Duty"
-Season 5 Episode 11 - "Retaliation"
-Season 5 Episode 12 - "Uncanney Valley"
-Season 5 Episode 13 - "Risky Business"
-Season 5 Episode 15 - "Public Enemy"
-Season 5 Episode 16 - "Mosley Lane"
-Season 5 Episode 17 - "Solitary Man"
-Season 5 Episode 18 - "The Fight"
-Season 5 Episode 19 - "Rite of Passage"
-Season 5 Episode 20 - "..A Thousand Words"
-Season 5 Episode 21 - "Exit Wounds"
-Season 5 Episode 22 - "The Internet is Forever"
-Season 5 Episode 23 - "Our Darkest Hour" (season finale)


Note: Don't upload screencaps from the episodes above :)