I like this paragraph from a comment FranÁois Lachance posted here nearly a year ago.

Blogging itself can be seen as psychologically attractive because of its potential to give duration to the punctual. It was not just the appearance of software that helped blogging catch on (it was possible to upload and update sites daily before blogware came on the scene). The global village wanted to reinstitute the vigil as a practice of relay.

I like watching as my friends upload their photos to Flickr. My evening, their morning, or their tomorrow, my this evening, and I can see the photos arriving in their photostreams and later being titled and tagged.