Places there's been dancing; if you have a gig at one of these venues, Webfeet should pick it up...
Email if you want your venue added to the list...

Gwent : Mid Glamorgan

Events in South Glamorgan, the Postcodes and Map References get you close to the venue, the Latitude/Longitude should be exact...

C

Angel Hotel Cardiff CF10 1SZ ST179764 51.480862, -3.183183
CMC Sports and Social Club Cardiff CF14 4XW ST177792 51.506160, -3.186712
St. David's Hall Cardiff CF10 1AH ST184763 51.480030, -3.176709

M

Morganstown ST123818  
Morganstown Village Hall Morganstown CF15 8LE  
Moulton ST072701 51.422, -3.334

P

Penarth ST185715 51.437, -3.173
Penarth Pavilion Penarth CF64 3AU ST190713 51.435243, -3.167374

S

St. Donats SS935686 51.406, -3.531
St. Donats Arts Centre St. Donats CF61 1WF SS935681 51.401937, -3.532190
St. Fagans ST120772 51.487, -3.268
St. Fagans Village Hall St. Fagans CF5 6DU ST121773 51.487987, -3.268079