Crowdmap is a tool that allows you to crowdsource information and visualize it on a map and timeline.
bedmap is a map-based hotel search tool. Browse the world, compare, and book at guaranteed lowest prices!
findfreemaps.co.uk allows you to create, customise, annotate and PDF your own maps for free, with no need to register or download any software.
MapBox is a suite of open source tools to create beautiful custom maps in Amazon’s cloud.