- !Catchy Colors
- AAW: March 25-April 1, 2024: An Easter Theme
- Alaska and Yukon
- Alaska Shutterbugz
- Alaska!
- Animals/Birds of Planet Earth
- Astrophotography - The Solar System and Beyond
- Backyard Astrophotography
- BBC Sky at Night and Stargazing Live
- Beautiful Capture
- Beautiful Public Eyesores
- Birding In The Wild
- Black and White Alaska
- Critique
- Dark Sky Travels Magazine
- F64 Challenge - ... --- ...
- Flickr Addicts
- Flickr Bird Brigade
- Flickrbon Guide to Mammals
- Flickrology
- FlickRussian: говорим по-русски!
- In Beautiful Light
- in explore
- Landscape Astrophotography
- Landscape, Nature and Wildlife Nirvana
- March for Science
- Marine (3 per day)
- MDPD 2018
- Minimalist Nature and Landscape
- My Daily Photo Diary 2016
- My Daily Photo Diary 2017
- Night Images
- NUESTROS AMIGOS LOS PERROS
- PhotographingSpace.com
- Photography Critique
- PINHOLE PHOTOGRAPHY MEDIUM FORMAT
- Rural Decay (no 30/60 limit!)
- Starry Night Astrophotography
- Telegraph Tuesday
- The Challenge Factory - Photo Contest Group
- The Fridge: The best of The Icebox
- The Icebox: We're Still Here!
- The World Through My Eyes ...
- This Photo is Funny!
- U.S. National Parks
- U.S. National Parks and Places
- US Wildlife
- Wing Wednesday
- Your Best Shot 2015
- Your Best Shot 2016
- ◆ CHALLENGE CLUB ◆ Come And Try Your Luck In The Matches ◆