For quite a few months I have been working on creating a full set of zoom-able slippy maps for World of Warcraft. After much dithering, it's finally ready, along with an article about its creation and the WoW internals needed to build it.
You can read the article or head straight on over to the live maps.

the process behind stamen's beautiful watercolor map tiles
trip trop nyc is incredibly fucking awesome. and very fast, considering what it's doing. i assume they broke nyc into squares and have the times between squares precalced?
some really nice 3D city maps from norway. having that detail and the coverage of google maps would be great
not sure if i linked to these yet - matt pointed me to this lovely piece of mapping work, showing the tube map based on time between stations.