title: Ruby Geolocation Gem/Plugins
body: <p><strong>What</strong> are the available (best) ruby IP-based geolocation gem/plugins?</p>
  
  <p><strong>How</strong> do they compare to one another in terms of functionality, performance and ease of use (e.g. do they interact with a web service, or require a separate database, etc.) ?</p>
  
  <p>I'm hoping anyone that has used some can share their experience and give recommendations.</p>