Cartographer ist eine Thematic mapping library for Google Maps. Damit lassen sich Heatmaps, Pie Charts und Point Cluster auf Karten darstellen
google maps, osm u.a. offline benutzen
Repository of utility libraries that can be used with the Google Maps JavaScript API v2.
Timemap.js is a Javascript library to help use Google Maps with a SIMILE timeline. The library allows you to load one or more datasets in JSON, KML, or GeoRSS onto both a map and a timeline simultaneously.
delivers support for the Mapstraction javascript library, which provides an abstraction layer for the various map providers including Google, Yahoo!, and MapQuest. It allows you to quickly display maps on your site from multiple providers and switch between providers without worrying about differences in their APIs.
Providing animated clustering behaviour to openlayers.