Despite the prevalent definition of weblogs as “links” pages, if one actually looks around at what's being published on blogs, they will find not only links and commentary, but news, diaries, photos, poetry, mini- essays, project updates, even fiction. What's consistent—and unique to the format—is a simple, approachable, and—with tools such as Blogger, GrokSoup, Manila, and Pitas—extremely convenient way to publish information to one's own web space at the “chunk” or paragraph level, versus the page, which requires much more complexity and overhead.
Evan Williams on Weblogs [1]
I've got the creation and manipulation of “chunks” down, it's the presentation that I'm still working on and is proving to be a difficult problem.
I mean, how do you handle navigation when the user can select an arbitrary portion of text?
But I'm still working on it.