Well, I know the airmoto meme quite well as far as I know. I don't usually hang around otoMADs in NND, but I move to YTPMVs.
MADs can quickly lose their popularity with people such as Nprp, Veksler, Yamas, PurpleSky, Mssnor, DeliciousCP and Romys.
Things like
http://www.youtube.com/watch?v=YiC-o6otKPcAnd
http://www.youtube.com/watch?v=olN_4crgN90Qucikly took over my heart. Even airmoto resides on youtube, and the advancement of it is fairly steady.
The less common sources I know in amoto acid are "Trumphet of Faith", "Ochomoto", "0721" and "Airsako". I have seen them less times.
Foreign madders, they say. There are too many sources and bases to remember. Man, I should start doing these as well - all my friend circle does them, and I have everything ready to start.