Should Obama have a personal blog?

I work at the State Bar of Wisconsin, the membership of which elects a president every year. (Technically they elect a president-elect, but that's moot.)

One of the things my co-workers and I (Rob and Dan) bounced off each other was a blog for the president-elect, for the three years they serve (president-elect, president, and outgoing (?)).

With the Obama administration, I wonder if the time of weekly addresses is out, and the time of a more timely blog is in. (Obviously, had Palin been elected, this wouldn't even be an issue, which is pretty scary.)

Not only could this serve as a more personal look into the White House, but also into our President.

Granted, he has a number of other 'Web 2.0'/social networking outlets, but these aren't directly run by Obama. And of course, a blog probably wouldn't be him directly filling it in either, but ... he may at least generate the ideas and feelings behind it.

Could it be possible? Looking ahead, when would we see another who actually stands a chance of being the first?