This is just something I made cos I felt like making a quick recap on the games' chronological order.
EDIT: Added year and date where the game takes place.
Oh, and questions and comments if you have any. Also, if something is wrong/missing here, point it out.
This thread can now be found on ScrewAttack:
[link] (not updated as often)
Main timeline:July 23, 1998.....................................Resident Evil 0
July 24, 1998.....................................Resident Evil 1/Remake (& Deadly Silence)
September, 1998...............................Resident Evil: Confidential Report
September 28, 1998..........................Resident Evil 3: Nemesis (up till Jill gets infected)
September 29, 1998..........................Resident Evil 2
October 1st-2nd, 1998......................Resident Evil 3: Nemesis (after Jill recovers)
November, 1998................................Resident Evil Survivor
December 27, 1998...........................Resident Evil Code: Veronica (& Survivor 2: CV)
Summer of 2002................................Resident Evil: Darkside Chronicles ("Operation Javier")
September, 2002...............................Resident Evil Dead Aim
February, 2003..................................Resident Evil: Umbrella Chronicles (the Russian Missions)
Autumn 2004.....................................Resident Evil 4
2005...................................................Resident Evil: Revelations
November, 2005................................Resident Evil Degeneration
August, 2006......................................Resident Evil 5: Alternative Edition ("Lost in Nightmares" chapter)
March, 2009.......................................Resident Evil 5
2009...................................................Resident Evil 5 Viral Campaign
20xx...................................................Resident Evil Damnation
2013...................................................Resident Evil 6
Retellings and possibly canon spinoffs:-Resident Evil: Outbreak files 1 and 2 fall in the same time as the 2nd and 3rd game
-Resident Evil: Umbrella Chronicles is a retelling of events taking place 1998-2003
-Resident Evil: Darkside Chronicles is a retelling of events taking place 1998-2002
-Resident Evil 4D Executer takes place somewhere between 2 and 3
-Resident Evil Genesis & Uprising retell the story of RE1 & 2, respectively, in mobile format
-Resident Evil: Operation Raccoon City is set during the Raccoon Incident and presents a "canon" way to complete the game
Non-canon spinoffs:-Biohazard i-Survivor is a non-canon mobile game featuring new STARS members
-Resident Evil: Gaiden is not considered canon (sadly, but for obvious reasons). It was meant to co-incide with the events of Code: Veronica.
-Biohazard: Outbreak Survive is a mobile game based on the Outbreak series.
Literature:-
Resident Evil (Marvel Comics) is a prequel comic book published as a pre-order bonus for the original Resident Evil game.
-
Biohazard: The Beginning (novella) tells a story that serves as a prelude to the events of the original game.
-An original novel
Caliban Cove by S. D. Perry takes place after the first game.
-An original novel
Underworld by S. D. Perry takes place after Resident Evil 2.
-An original novel
To the Liberty by Suiren Kimura takes place some time after the Raccoon Incident. It features an Umbrella owned ship called The Liberty.
-An original novel
Beast of the Northern Seas by Kyū Asakura focuses on a family that helped establish the Umbrella Corporation.
-A manga named
Biohazard: The Umbrella Chronicles takes place just before the invasion of the Russian Umbrella facility.
-
Angela's Diary is a document included in the Biohazard: Degeneration limited edition box-set, detailing the back-story behind the events of the movie.
-Comic book simply titled
Resident Evil by Ricardo Sanchez is set some time before Resident Evil 5 and features new BSAA members.
-A comic titled
Resident Evil: Fire & Ice depicted the ordeal of Charlie Team, a third STARS team.
-The
Official Resident Evil Comics told a series of events and sidestories set within the said universe.
-A manga called
BioHazard Marhawa Desire focuses on BSAA agent Chris Redfield investigating a series of biohazard incidents occurring at Marhawa School somewhere in Asia.
Other:-Wesker's Report, Wesker's Report II and Wesker's Extra Report provide some backstory for the series from Albert Wesker's viewpoint.
-Jessica's Report is a DVD meant to provide some backstory to the events of Resident Evil Revelations.
-Darkside Report is a booklet that provides some tidbits of info on the story of Darkside Chronicles.
-Experience Kijuju, a collection of blogs by the character "Adam". Set before the events of Resident Evil 5.
-Inserted Evil (an alternate reality game) is a non-canon tie-in with Operation Raccoon City.
-A radio drama called
Chiisana Tōbōsha Sherry ("Sherry, the Little Runaway") continues Sherry's story and is set shortly after the end of Resident Evil 2. Deemed non-canon by later games.
-A sequential drama called
Ikiteita Onna Spy Ada ("Ada, the Female Spy, is Alive") is set a few days after the events of Resident Evil 2. Deemed non-canon by later games.
-A collection of three drama albums called
Unmei no Raccoon City ("Fate of Raccoon City") tell individual stories of civilians during the outbreak in Raccoon City, taking place over four nights.
-BioHazard: Makoba Village Tragedy is a sound drama depicting the events at Makoba village located near Arklay Mountains during the original outbreak.
If anyone happens to know anything else on the other novels (The Beast of the Northern Seas, To the Liberty, Rose Blank) or the comic "BioHazard X" and where they are placed in the timeline, I'd be happy to know

Any info on "Raccoon City Secret Report" DVD is also welcome.