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.
Magazines & Galleries
LFI Leica Master Shots
https://lfi-online.de/ceemes/en/gallery/mastershots/info.html
Social Documentary Network
https://www.socialdocumentary.net
burn
https://www.burnmagazine.org
Tools & Tech
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/
Magic Lantern
http://www.magiclantern.fm/
ShotHotSpot
https://www.shothotspot.com
Atlas Obscura
https://www.atlasobscura.com
Artists
Tom Hegen
Encounter: Met him on a photo exhibition in Munich, Germany.
“Earth’s surface that has been transformed by the impact of human presence”
https://www.tomhegen.com
Nomi Baumgartl & Sven Nieder
Encounter: “Stella Polaris”, an artistic & spiritual perspective on climate change in the far northern reaches.
Stella Polaris Project
https://nomibaumgartl.com
https://sven-nieder.de
Vincent Laforet
Encounter: “Project Air”, high-altitude nighttime aerial photos of cities.
http://www.laforetvisuals.com/
Chase Jarvis
Encounter: Youtube.
http://www.chasejarvis.com/
Dmitry Kokh
Encounter: “House of Bears“: Polar Bears that took over an abandoned house in the most Eastern part of Russian Arctic.
https://www.dmitrykokh.com
Creating & Printing
White Wall
http://www.whitewall.com
RetroViewer
https://www.image3d.com/retroviewer/