Resources Tim O'Reily quotehttp://radar.oreilly.com/2009/01/work-on-stuff-that-matters-fir.html

Joshua Porter quotehttp://52weeksofux.com/post/513417140/the-experience-belongs-to-the-user

Caterina Fake quotehttp://www.caterina.net/archive/001216.html

IP geo location ( "looks like you are in..." )

Googlehttp://code.google.com/apis/ajax/documentation/#ClientLocationLive example: http://googlegeodevelopers.blogspot.com/2008/08/load-your-users-location-on-map.html

IP Info DBhttp://ipinfodb.com

Quovahttp://www.quova.com

Maps

Google Mapshttp://code.google.com/apis/maps

Yahoo Mapshttp://developer.yahoo.com/maps

Bing Mapshttp://www.microsoft.com/maps/developers 100+ more map APIshttp://www.programmableweb.com/apis/directory/1?apicat=Mapping Web APIs ( "Nearby activity" )

Foursquare APIhttp://developer.foursquare.com Gowalla APIhttp://gowalla.com/api/docs

Yelp APIhttp://www.yelp.com/developers

Location awareness

Simple Geohttp://simplegeo.comSkyhook Wirelesshttp://www.skyhookwireless.com/developers Maponicshttp://api.maponics.com