- Mindat (comprehensive database of minerals, photos, localities) www.mindat.org
- Strahlen (European site for pretty well everything related to minerals) http://www.strahlen.org
- Steve Sorrell – Steve is an artist, photographer, mineral collector, etc. Check out: https://www.patreon.com/CrocoArt
- see Steve Sorrell’s collection at https://pebblecollection.com/
- Worldwide maps (maps, satellite views, etc) http://www.satellites.pro
- Catalogue of Type Mineral Specimens https://www.ctms-jack.ch/