I have almost finished doing something similar. I did it on Stay up forever collective, which untill 2000 was truelove collective. They have loads of labels in a collective so lots of different styles etc so lots of labels. Also good over 10 year history if libetrators who started suf. Talk about distribution, promotion, structure etc
Lots of info from Trust the dj
Wax mag
Truelove
SUF collective
all on net, interviews etc and chris talks about royalties, tax etc