I'll start using Posterous for microblogging and see how it works out.

I'm already impressed by it.. You can post directly via e-mail and it can automagically identify Youtube videos and post the video.. or post image or audio attachments in various formats..

The best thing though is that it can automatically post attached images, videos and text to a variety of sites.. For example, I've set it up so that this post will appear on Picasa (because it contains image attachments), Facebook and Twitter.  If I've done this right it should also post the image to Facebook.

I'm also going to attach a couple of other documents to see how they are posted.

Hope this works..

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