That list doesn’t even have 50 different “protestant denominations” - where is a list of all 30,000 different denominations. If there really are 30,000 different “protestant denominations” there there must be a list of every single one somewhere.
http://www.gotquestions.org/Protestant-denominations.html
http://www.philvaz.com/apologetics/a120.htm
http://christianity.about.com/od/denominations/p/christiantoday.htm
Global Christianity - Pew Forum on Religion & Public Life
Global Christianity - Pew Forum on Religion & Public Life
http://forums.catholic.com/showthread.php?t=5159
http://hirr.hartsem.edu/research/fastfacts/fast_facts.html
http://www.city-data.com/forum/christianity/1938892-33000-41000-how-many-protestant-denominations.html
http://www.justforcatholics.org/a86.htm
======================================
I don't think there IS a complete list as denominations continuously spring forth and disappear. I mean no disrespect but that's what the research seems to indicate. It will take some fishing to get them all, but if you really want the list I'm sure you will 'fish.' Sorry!