A lot of us are thinking through issues of narratives of the self in local and global sites. This book by Katharine Harmon has been helping me think through these issues from a fresh perspective. It is a beautiful book, both visually and in what it allows me to think about.
Another 'you are here' project is here. It uses surveillance cameras to track pathways through a public space. This one is "You are Here, 2004", created from "Six networked firewire video cameras, flat-panel display, PC computer, custom software".