This is a test of the new web browser Flock. It is a Mozilla creation (who isn't these days!) and is geared toward web sharing. That is, pictures, news, etc. One of the features is blogging. If you have an account with Wordpress, Typepad, Movable Type, LiveJournal, Drupal, or Blogger, you can have an editor that includes everything that the usual suspects need from a toolbar, or you can change to the source tab and do all of the stuff yourself through HTML. While the editor toolbar doesn't have all the added features as the Wordpress extra toolbar, the basics are there. As you can see in the screen shot, it looks fairly simple. This post was created using the blog feature within Flock.
Peace be with you.