Of course the first most common is “Hi. Here's my blog. I will use this blog to talk about stuff and junk.” I am guilty of this myself. Lately, I've been inundated with the next most common type of blog entry: “Dude! So-and-so has a blog, check it out!”
...Which actually is great. If I like reading someone, then chances are I'd like reading someone they like reading. Except in Scoble's case, I can't keep up with the number of people he links to.
So, with that in mind, some of the blogs I have recently discovered and enjoyed and subscribed to (er, to which I have subscribed... oh heck, who cares) in the last month or two that are related to the areas of technology in which I am interested (much better):
Plus there are my old standards on the right side. I wish there were more Exchange or general email-related blogs (or I wish I knew about them). Adam's got some Exchange posts, anyone else?