I’ve long looked for an easy way to drop OpenStreetMap maps into another site, and although there are myriad “under the hood” ways of doing this none of them ever had the “embed” ease-of-use of sticking a Google Map on a page. But with CloudMade maps, it’s easy to generate embed code that you can paste anywhere, and the maps draw from the same OpenStreetMap data, so anything you edit there will show up on CloudMade. Here’s Charlottetown, for example: