Geocoder is a complete geocoding solution for Ruby. With Rails it adds geocoding (by street or IP address), reverse geocoding (find street address based on given coordinates), and distance queries. It's as simple as calling geocode on your objects, and then using a scope like Venue.near("Billings, MT").
This gem is an attempt to port Andre Lewis' great geokit-rails to Rails 3. It is not finished. Some parts of the original plugin remain absolutely untouched or untested.
If you need to work with geographic data, Geocoder is an excellent gem for converting addresses and coordinates, finding nearby locations, determining distances, and more!
jquery-addresspicker - JQuery UI widget : address autocomplete field by google maps V3 geocoding service
The Google Map version 3 plugin for jQuery and jQM takes away some of the head aches from working with the Google Map API. Instead of having to use Google event listeners for simple events like click, you can use jQuery click events on the map and markers.
