CloudMade recently announced their will no longer support the free tier which I used to display running races I participate to. I thus moved all traces to using MapQuest tiles instead. There is so few traffic on the blog that I am way below their rate limits.

Thanks to the way I displayed them with the my own plugin using Leaflet in Octopress, I was just changing tile source and credits in my _config.yml:

leaflet_tile_url: http://otile3.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.png
leaflet_tile_attrib: Tiles Courtesy of <a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png">