ESTA's E1.17 "ACN" Standard is at least coming to use, more details at
http://www.controlgeek.net/acn/


I have read tat MIDI show control is used on some applicstions, don't know of popularity.

DALI and EIB is sometimes used on building light control. For show control applications they are quite rate I think (sometimes DALI controlled devices are connected to DMX512 system with protocol converter).

Lonworks was once popular in house automation, how much it is used nowadays...

There are also other control protocols...

This book covers somewhat those topics:
John Huntington's Control Systems for Live Entertainment, 3rd Edition
http://www.controlgeek.net/bookinfo/