I covered this very topic a few months ago, although I didn’t have the historical references and term “lifelogging” as background.
Modern services make it dead simple to track pretty much everything about you. I’m beginning to feel a bit worn out by all the work I do for these services. Check Jeff Nolan’s (@jeffnoland) thoughts for more on what he’s calling check in fatigue.
The obvious problems are privacy and data ownership. I don’t own my checkins, foursquare does.
Facebook has hit this wall already, with mixed results so far. The coming decade will be interesting as the forces of capitalism and personal privacy collide.
I hope it gets figured out by the time my daughter comes of internet age.