The map shows a concentration of stones in the UK, particularly in Scotland. Is that representative of the stonelifting community? Or maybe just an artefact of it being an English-language website?
A bit of both. Scotland definitely has a concentration of stonelifters in the community. But there are plenty of stones that I haven't added to the map (in Iceland, Sweden, the Faroe Islands, and Japan especially). I try to branch out to other countries and cultures as possible.