For creating great mobile, touch friendly maps: "Integration with the Leaflet JavaScript mapping library."

This module will geocode just about anything you throw at it including addresses, GPX files, geo-tagged images, and KML files.

Provides integration with the geoPHP library

"IP Geolocation Views & Maps (IPGV&M) makes it easy to create Views-based mapping solutions using the map renderer of your choice (Google, OpenLayers or Leaflet)..."

"Provides Animated Marker Clustering functionality for Leaflet"

Want to freshen up your site with something a bit different?

A Drush commandis at the end of the article which downloads all of the main modules used in this screencast.
Transcript Below:

It's been awhile since I've used it. It provides a location field. From what I remember, it's a little buggy. Quote from Mediacurrent, "Address Field - I used to use the Location module fairly often and in early Drupal 7 I used this module. I tend to like the Geofield module a lot more than these particular modules." http://www.mediacurrent.com/blog/top-drupal-7-modules-winter-2014-edition

Works well with Geocoder. Used in Drupal Commerce. Quote from Mediacurrent: "Address Field - I used to use the Location module fairly often and in early Drupal 7 I used this module. I tend to like the Geofield module a lot more than these particular modules." http://www.mediacurrent.com/blog/top-drupal-7-modules-winter-2014-edition

"Geofield is a module for storing geographic data in Drupal 7. It supports all geo-types (points, lines, polygons, multitypes etc.)"