Is blogging dead?

Just realized today that many people are moving to live news and interaction networks like Twitter and LinkedIn.

Why should we write two-three times per day here instead of broadcasting the same idea using Twitter? Follow me on Twitter and I am sure that we will save a lot of time; I don't have to write pages to feed the search engines and you don't have to add another bookmark to your existing list.

Let's make an exercise: how much of your allocated time for information are you spending on each of these separate information channels: news websites, blogs, Twitter and LinkedIn? My numbers are 55%-5%-15%-25%. What numbers you have?