In this column: database blues clubs and bars, Jazz Clubs Worldwide, the Netherlands, The Baked Potato, Café 't Keerpunt - grote zaal (big hall) en gelagkamer (taproom), Blues Don't Die, Maui Sugar Mill, Dutch Blues Foundation, Dutch venues/locations/places/performances, Bluesclub Apeldoorn, Blues Aan Zee (De Noviteit, Monster), Heyhoef-Backstage Tilburg. This column describes databases of blues venues …