I’ve done my time in content management and this could be big: Google buys Pyra. In my experience, the hardest parts about a Content Management System are finding the right content and getting the content into the system. When you mix the leader in search technology with a pioneer in user friendly content creation, then I think you’ve got a pretty potent combination.
I would not be surprised to see a Google branded knowledge blog offering in the near term. Until now, I didn’t think that k-blogs were ready for prime time. But Google could take them over the top.