This document discusses geolocation technologies and location-based apps. It begins by explaining how computers and mobile devices determine location through methods like IP address, GPS, and multilateration. It then lists and briefly describes several popular augmented reality, social check-in, and other location-based apps like Foursquare, Gowalla, and Yelp. The document concludes by asking the audience what geolocation apps they use or have heard about.

1. Geolocation Jeff Schneidewind Emerging Technologies Research Specialist UC Irvine Libraries Lunch2.0 July 9, 2010

2. Internet registration Zip Code How do computers know where they are?

3. Multilateration GPS How do mobile devices know where they are?

4. Directory – identify businesses, venues Social network – Tweets, Checkins Images – pictures taken nearby More – Wikipedia entries, etc. Augmented Reality

5. Juniao Layar Urbanspoon Yelp Augmented Reality

6. Foursquare Check-in

7. Gowalla Check-in

8. SCVNGR Check-in

9. Miso - TV Hot Potato – TV, music, movies, books Get Glue - ditto Brightkite – Foursquare/Facebookmashup StreetSpark - matchmaking Check-in

10. Lokast – media sharing Google Latitude – find friends on map Locale – adjust phone settings automatically Other Geolocation Apps

11. What do you use? What have you heard about? Questions and comments? What about you?