I am right now in Atlanta, Georgia for the Georgia Tech University Hack and one of the hot technologies we want to have students hack on is geolocation. To this end, I have given a talk on geo hacking:

As a follow-up to the talk and to make it easier for students to build geo hacks rather than battling the different APIs, I’ve put together a small JavaScript library that fulfills a lot of geo hacking needs:

• Detecting the visitor’s location with the W3C geo API and with IP as a fallback
• Find geo location from text
• Find location from lat/lon pair
• Find locations in a certain web document (by URL)
• Get the location for a certain IP number

Check out the YQL Geo Library demo page and get the YQL Geo Library source on GitHub.