- Amateur Astro-Photography
- Amateur Astronomy
- astrometry
- Astrophotography - Astronomy - Astrophysics
- Astrophotography - Comets and Asteroids
- Astrophotography - The Solar System and Beyond
- Avibase
- Backyard Astrophotography
- Bird Videos
- Bird Identification Help Group
- Birding In The Wild
- Comet Images
- Comets
- Deep Space Astrophotography
- Hawaii
- Hawaii Insect ID
- Hawaii Plant ID
- Hawaiian Birds
- HDR
- in explore
- Kauai, Hawaii
- landscape around the world
- Landscapes Only
- Lazy, Quiet, Peaceful 静*懒
- Lightning
- Lightning Images.
- Meteors
- Meteorwatch
- Our Planet at Night
- Rain
- Seascapes and Seashores
- Shorebirds (aka Waders)
- The Milky Way
- Time Lapse Videos
- Wide Field Astrophotography - Starry Skies
- Yamaguchi