Here is a great video I found on Youtube on displaying lots of markers (more than a couple hundred points) through tile layers. He makes some great points, but I like my raphael overlay system I used in the church heatmap project.
mapping
I ran into a situation recently where I had a very large array object that was not going to change. It was the polygon coordinates for the world countries to be used in KML provided by Thematic Mapping. I didn’t wan’t to pull this data out of MySQL every time […]