The latest one - Scott Adam's Dilbert Blog.
Don't think that this only means another few fun words a day to read - if you've read this guy's books before, you know that he'll probably introduce you to a universe of ways to slack at work. Read at your own risk :)
The first words of the Master:
Welcome to my first blog entry.
If you’re reading this on company time, congratulations on beating the system. If you’re reading it on your own time, you really need to find a job where they pay you to do this sort of thing.