About : Compare-A-Map version 2.0
This website enables users to compare the quality and quanitity of data and cartography from the major providers of web basemaps.
Alex Mandel (c) 2011-2014 -
Code written by me is free for re-use.
Software used:
OpenLayers,
JQuery
Hosted on
Github Pages
Nominatim Search Courtesy of
MapQuest 
,
Data from
OpenStreetMap.org (CC-By-SA)
Maps provided by
Bing,
Google,
Yahoo,
Mapquest,
Stamen,
TopOSM,
USDA/USGS,
OpenCycleMap,
and
OpenStreetMap
* Max zoom is currently 18.