“groovy mother...”

Very nifty Google Maps-like tiled-and-draggable front-end to the Open Street Map data. I was surprised how detailed the data was for my neighbourhood, but I guess I shouldn’t have been, given the high geek-density round here.

Twitter posts plotted on a world map in real-ish time.

Site which gives you walking directions around London. Since most major cities have wacky one-way restrictions, driving directions are rarely handy. I’m surprised Google Maps et al don’t support this kind of thing.