index.html
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Loading markers from CSV</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox.js/v1.6.3/mapbox.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox.js/v1.6.3/mapbox.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<script src='https://api.tiles.mapbox.com/mapbox.js/plugins/leaflet-omnivore/v0.1.2/leaflet-omnivore.min.js'></script>
<div id='map'></div>
<script>
var map = L.mapbox.map('map', 'landplanner.ifnhcmb0')
.setView([38, -95], 4);
omnivore.csv('https://docs.google.com/spreadsheet/pub?key=0AsDSuiodUlFIdHBNSHBnVUpUZ0NZbXhsdlp4TXc4Q0E&single=true&gid=0&output=csv').addTo(map);
</script>
</body>
</html>