Brushless motors from models and such

Hi all,

I have been trying to find information on these small hobby motors and
have come up pretty empty.

It seems there is not listing or charts that show what sizes are
available, surprizing that I didn't find manufacturers with such data.

Also, I have not found the electronical link between the controllers
and the R/C receiver. One guy at tech suppport said he thought it was
0-5 volts, but was not sure.

Does anyone know of any hobby lists or other sources of information
were the guys would actually know how the parts work ? it seems the
whole hobby is orienteated towards using the toys and not engineering
them. (just opposite of this list)

Dave