PHP latitude and longitude google maps Nov 19th, 2012 (updated Jul 29th, 2013) Here's how to get the latitude and longitude of a city using Google's geocode API. Read more about PHP latitude and longitude google maps
GMap (google maps integration) Feb 23rd, 2013 (updated Feb 24th, 2013) Integrate Google Maps with Drupal. Read more about GMap (google maps integration)
OpenLayers Feb 23rd, 2013 (updated Feb 24th, 2013) Combine maps from different sources - integrates with Views and can do a ton of map related shtuff. Read more about OpenLayers