Excellent list Halycon, I can see it has been a real labour of love!
Some suggested changes and additions below, please don't take anything I have written as a criticism, just trying to help make your list as accurate as possible
Missing Gay Clubs
Triangle super club, Alcazar Complex - this was a temporary location for Dave Man Club,but eventually opened on its own
T&T, Soi Yensabai, started as a karaoke, but eventually became a 2 shophouse wide club and was THE location for late night pickups
The Club in Soi Lengkee, replaced T&T as the go to venue, but had their pricing model wrong, so barely lasted a year
Butterfly Karaoke Dance Club, Soi day night one, another one that started as a Karaoke but morphed into a club
Muze (same premises as I-dol club and now G-Star),this was an attempt to recreate Daveman club but ended up burning down
Hole in one, this was on Soi Buakow Market square and was another popular after hours spot around 2002-2003
Suggested corrections
There were 2 bars called Euroboys in the same location, first was a gogo, second is the current beer bar which opened some years later under different ownership
There were 2 X-Ray clubs. The second one was 2 Sois north of the original in North Pattaya
Marine, Disco duck, x-zyte, hollywood etc are straight clubs which were sometimes frequented by Gays. If they are on the list then Tumnan Issan, Sinlapin Issan and Champ Issan should all be added to the list, all of which attract (or attracted) a 50+ gay crowd
I don't think there was ever a bar called N.boys. When K.boys closed and Nice boys opened, they were too mean/poor to replace the neon sign, so they simply changed the K in the K.BOYS sign to an N so it read N.BOYS
I think Wonder bar was Wunderbar (German owners)
I think Donna Bar is called 2Donna bar?
The location of Nok Nok was in the same premises as Clubber/Jungle boys (or possibly Nok Nok had 2 locations?)
Add Home bar should be @Home Bar also sometimes written as At Home)
New Sawadee was next to 7-11 at Sunee, not in same location as Butts boys
The full name for Magic City boys was Murphys magic city boys
I'm sure I will think of other locations later, but just a quick brain dump for now
PS. If someone is in contact with Madame Jim, perhaps they can share the list with him, I'm sure he would have loads to add!