FindMyLongarmer is sponsored by Longarm-Tech.com, a source of technical information supporting longarm quilting machines, frames, and the Longarm artists that make works of beauty with creative stitching.
FindMyLongarmer has been available since the beginning of February and already has over 200 listings, mostly in the US. If you are looking for longarmers in England, South Africa or Australia this is also the place to look.
The site was started by Keith H. His wife was [you guessed it] a longarmer. As such, he maintained her machine. He was surprised that there was so little in the way of forums, etc. like motorcycle enthusiasts [of which he is one] enjoy to support the sport and maintain the equipment. And, so these sites were born.
I agree, better information is helpful to a community of quilters. I trust thus is helpful.