1. MICHELLE CHANG CPSC 689 LOCATION MARCH 18, 2008 Fleeting Social Ties

2. Concept New social ties & knowledge Public authoring Location as content of subject vs. metadata Fleeting Encourage new interaction

3. Prior Research comMotion  location-based reminders, to-do lists, e-mails delivered Urban Tapestries  interactive personal history trail to inform community Trace  event attendees digitally linked to one another after event Location-linked notes  location-based “post-it” notes In-situ Authoring  curator tour guide split by location and presented by new authors

4. What’s common? In-situ authoring Location tracking to an extent Public authoring Based on personal experiences

5. What’s different? Collectively ties services in real time Relevant only in real time and transitory Location is the subject matter No tracking history Content changes with time No revisits, revisions, refining, reorganizing No lasting contacts or new friendships