I'm working on a restaurant reviews app and I'm not sure what to use for location awareness.. I am developing it in ruby on rails. What I wan't it to do is have the ability to search for places nearby a user's entered location or guess the user's location based off their ip address as well as off of geo coordinates or w/e too. Honestly I don't know where to start anyone have any good api / gem / article suggestions?Answer1:
Check out the <a href="http://geokit.rubyforge.org/" rel="nofollow">geokit</a> gem for the backend, and the <a href="http://dev.w3.org/geo/api/spec-source.html" rel="nofollow">WC3 Geolocation API</a> for getting location info from users.