This is an active Google Map and can be scrolled.

 

Blue pins - Hotels I've stayed at

Red pins - Hotels stayed at by others (These will be added later)

 

Other Sources:

 

Sjoerd Bakker - Publishes a paper book Economical Hotels in Mexico and Central America

Here is a write up of how to buy it - Excellent information on inexpensive hotels

 

Hotels in Mexico and Central America

An ADV thread dedicated to hotels people have stayed in.  Found here