Boardthing
United States of AmericaVisit website ↗
According to the website, Boardthing is a tool for “fast, simple, real-time collaboration” that allows you to: Create cards or text with images Move and arrange cards with collaborators on a shared board Organize cards into groups Export your board as HTML , plain text, or outline ( OPML )
Source: https://web.archive.org/web/20201123185016/http://www.participatedb.com/tools/254