Mullenweg Speaks Out on Twitter, WordPress and the Question of Competition(readwriteweb.com)
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Mullenweg Speaks Out on Twitter, WordPress and the Question of Competition
http://www.readwriteweb.com/archives/mullenweg_comscore_twitter_wordpress.php
I read economics, business and web 2.0 blogs everyday. Some of the material cannot be covered in 140 characters or it will lack substance. What I do see on twitter is a headline to catch your attention and a link to get more information on another blog.
Twitter can replace blogs that lack substance, ie the teenage girl that writes about her boring life and stupid thoughts on her blog on myspace. This could probably be done in 140 characters or less.