Bing Maps REST ServicesREST services for geocoding addresses

cssmatic.comCSS tools for web designers

EsriWorld imagery service

REST API for searching geolocation of IP addresses

Google Maps JavaScript API v3Js library for geocoding addresses

jQueryJs Library for web developers

OpenlayersOpen Source Javascript library for displaying maps and for working with geographic datasets

OpenStreetMapFree base maps

PostgreSQLOpen Source Database

Spatial ReferenceList and info of Spatial Reference Systems