OpenStreetMap
Just doing a google search to see whats the latest out there, and found this.
http://www.cognitivecombine.com/2009/08/tool-compare-google-maps-to-openstreetmap/
It's cool, 'cause it shows how far we've gone in the details. .. and gives a quick glimps what what else of a 'basic-map' is still needed to be physically surveyed. And it also shows Yahoo maps as an option to view also.
I contacted the author, and just wanted to share it here as i haven't seen it before, and maybe it can be added to the wiki list (if there is one)
Cheers,
Sam
讨论
amm 于 2009年09月30日 21:21 的评论
In case you haven't come accross this, the Map Compare tool by geofabrik does something similar ( http://tools.geofabrik.de/mc/ ). Unfortunately Geofabrik's one only allows you to compare to google maps and not to yahoo maps or Microsoft maps. It is also side by side rather than an overlay.
JohnSmith 于 2009年10月 1日 02:28 的评论
That link you posted looks identical to this site:
http://sautter.com/map/
dekarl 于 2009年10月 1日 08:26 的评论
I guess there's not to many ways to fire up openlayers with a transparency slider and the popular maps as base layers ;)
IgnoredAmbience 于 2009年10月 1日 09:31 的评论
It's been done to death before. Including by myself, but I took that site down in 2007 over fears that it would make copyright infringement easy.
Harry Wood 于 2009年10月 1日 14:35 的评论
Yep. This kind of thing does make copyright infringement easy. It's so easy you can do it by accident. As an OSM mapper I find I have to abstain from looking at this kind of site, because it's so enticing. Suddenly figuring out what's missing is a doddle.
In my opinion we should discourage people from running this kind of site, or at least discourage anyone who contributes to OSM from looking at them.