- !Flickr Macro
- "Black and White Unlimited"
- ***Flickr Global
- Agriculture
- Architecture Unlimited
- Architecture, Landscape and Cities images / Archiref.com
- Awesome Nature
- B&W
- Bird Fanatics! (No Limits)
- Birding In The Wild
- BiRDS are Beautiful
- Birds of the world
- Birds Photos - Check out the new discussions!
- Colors of the World
- Digital Infrared
- Flickr Addicts
- Flickr-Fotografen- Deutschland
- FlickrCentral
- Infrared
- Infrared Photography
- landscape around the world
- Landscape Beauty !
- Landscape Exhibition
- Landscape Exploration
- Landscape Photography Magazine
- Landscapes 101 (Unlimited)
- Landscapes Naturally
- Landscapes of the World
- Landscapes Only
- Landscapes!!!
- Macro
- Macro & Close up Photography
- Macro & Nature Fotos *Please comment on other's foto (s)!
- Macro Addicts, That is all.
- macro flowers insects
- Macro in nature
- Macro Photography
- Macros con Estilo / Macros with Style
- Macros Group
- National Geographic Wild Life
- Natural Landscape & Wildlife Photos
- Nature and Photography
- Nature Heals the Soul
- Nature Photography
- Pentax
- Pentax 645D/645Z
- Pentax Awards (post 1, award 1......currently banning bad users)
- Pentax K1 photos
- Pentax picture taker
- PENTAX RICOH K-MOUNT DIGITAL CAMERA USERS (3p.Day)
- Photography
- Ricoh Pentax 645Z
- Sky glory
- Team Pentax DSLR
- Wildlife Photography
- ~ PENTAX Cameras ~
- ★★★ Pentax Life ★★★