Is there a website that will let me see add markers and bounding boxes on top of a street map?

Question

Is there a website out there that will let me markers (lat/lon) and bounding boxes (minimum / maximum lat/lon) and let me see it overlayed on top of Google Maps (or OSM, or Bing, etc)? I'm not really looking to create my own webpage for this... I'm hoping someone's implemented something like this for a general use case or a demo and it's online somewhere.

Answer 1

Google Maps Example:

You can run this example from you local drive.

You could simply add a form to enter the coords rather than the code.

for changing the extents set the new google.maps.Rectangle({ bounds:new google.maps.LatLngBounds(new google.maps.LatLng(37.2, -122.3), new google.maps.LatLng(37.6, -121.9)), to the values you want.

new google.maps.Rectangle({
    bounds:new google.maps.LatLngBounds(new google.maps.LatLng(37.2, -122.3), new google.maps.LatLng(37.6, -121.9)),
    map:map,
    fillOpacity: 0.2,
    strokeOpacity: 0.5,
    strokeWeight: 1
  });

http://gmaps-samples.googlecode.com/svn/trunk/fusiontables/rectangle_example.html

Open Street Map Example:

For Open Street Map you can just call the API to generate a simple rectangle by adding &box=yes to the call

http://www.openstreetmap.org/?minlon=-0.489&minlat=51.28&maxlon=0.236&maxlat=51.686&box=yes

Answer 2

I am pretty sure this will meet your requirements:
http://mapper.acme.com/