"Blogging continues to splinter into many different categories, providing an incredibly rich ecosystem of self expression tools and compelling content for readers. The prototypical personal blog, where a single writer simply writes their daily thoughts on their life and/or topics that interest them, will always be hugely popular. But multi-author blogs will continue to thrive as well. And a huge percentage of blogs focus on single topics of interest, from tech news to wine to knitting. Whatever it is you are interested in, it's likely to have a community of people who share that interest.
But perhaps the most interesting development is the steady evolution in the definition of a blog itself. Today photo and video blogs are already common. Microblogging platforms like Twitter and Friendfeed are the fast food equivalent of the blogging world, and continue to gain popularity because they let people update multiple times per day with 140 characters or less on what they are doing, how they're feeling, etc. Not only is microblogging a terrific method of self expression, the value of the raw data that's created is enormously important. The Twitter messages I read during the two presidential conventions gave me a good idea on how people reacted to the various speeches. It's not statistically relevant, but pollsters will be watching that data more and more closely over time.
Whatever happens next with blogging, it's here to stay. And I can't wait to see what comes next."
-State of the Blogosphere 2008-