Microsoft Virtual Earth is this easy to implement
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript"
src="http://dev.virtualearth.net/mapcontrol/v5/mapcontrol.js">
</script>
<script type="text/javascript">
var map = null;
function GetMap()
{
map = new VEMap('myMap');
map.LoadMap();
}
</script>
</head>
<body onload="GetMap();">
<div id='myMap'
style="position:relative; width:500px; height:400px;"></div>
</body>
</html>
I know almost nothing about Google Charts, but playing around with it seemed like a fun idea. So here goes
< img src="http://chart.apis.google.com/chart? cht=lc&chs=500x400 &chd=t:0,100|1,99|2,98|3,97|4,96|5,95|6,94| 7,93|8,92|9,91|10,90|11,89|12,88|13,87|14,86| 15,85|16,84|17,83|18,82|19,81|20,80|21,79|22,78| 23,77|24,76|25,75|26,74|27,73|28,72|29,71|30,70| 31,79|32,78|33,77|34,76|35,75|36,74|37,73|38,72| 39,71|40,70|41,69|42,68|43,67|44,66|45,65|46,64| 47,63|49,62|50,61">
Seems there are lots of possiblities here for some creative abuse