A blog post is fixed, until it is edited. But a tweet is a self contained unit of content. Except when it is a retweet, or a reply, or garners retweets and replies - then it is a part of a conversation more than content. Right?
So that is where the "microblogging" comes in (and no, I don't include twitter in that bucket - due mainly to the lack of easy navigation and structure when compared to the others) - tumblr and posterous, surely many others as well [see wikipedia], but those are the two that I've played with myself.
Sitting between the possiblity of conversation in a blog (aka the comments, and sometimes pingbacks) - and the almost necessity of it at twitter, the microblogs make sharing posts and following users a central part of the experience.
But does that make them fundamentally different? Or just slightly improved for the users that want the whole flow rather than the main content?
How does it compare to publishing a "fixed" piece of content, be it on Slideshare, as a downloadable pdf, or in the form of an ebook?
Does the temporal permanence change how we as users/readers perceive and interact with the content?
Or is everything consumed in a "here and now" setting, rendering the packaging irrelevant to the usage?
hey everybody: ebooks are just websites built for special browsers. it should not suprise you that ebooks can do what websites do [1]
And for some twisted thoughts brought out in music, the new single from Bjørk is streamable over on another tumblr - reminds me that I actually have three of her albums, and here they come into the play queue shortly... when this was written - pre-scheuled for release.
Digital wins most times. (now on Debut, track 04 - There's More To Life Than This - oh yes)