- Aviation
- Aviation Photography Group
- Butterflies
- CARS, CARS & CARS
- contrails
- Emerald Tree Boas & Green Tree Pythons
- Fossils
- Maritime (anything sea related from all around the globe)
- Mushrooms
- Orange Flowers
- Radio Heads
- radios
- Science, Technology, History
- Slide rules
- The amazing world of mushrooms
- Timepieces
- Vintage Electronics
- Vintage Radio
- watch group