There are many websites around that deal with photography, some more technical than others. This is just a random collection of websites that I found interesting.
Tools, Tech & Sites
The Gimp
http://www.gimp.org/
Hugin
http://hugin.sourceforge.net/
Luminance HDR (formerly known as qtpfsgui)
http://qtpfsgui.sourceforge.net/
Darktable
http://www.darktable.org/
Luminar
https://skylum.com/luminar-new
Canon Rumors
http://www.canonrumors.com/
Magic Lantern
http://www.magiclantern.fm/
DP Review
http://www.dpreview.com/
PetaPixel
http://petapixel.com/
ShotHotSpot
https://www.shothotspot.com
Artists
Chase Jarvis
http://www.chasejarvis.com/
Vincent Laforet
http://www.laforetvisuals.com/
Fuck You Very Much
http://fuckyouverymuch.dk/
Creating, Printing & Stuff
White Wall
http://www.whitewall.com
RetroViewer
https://www.image3d.com/retroviewer/
