If you are both facebook user and wordpress blogger, you may be interested in getting these two work together. Mirror Blog is the answer you are looking for.
Mirror Blog is an application that integrates your existing blog into facebook. It archieves that by mirroring your existing into your facebook account.
Mirror Blog is a fully functioned blog writer. You can do blogging without leaving facebook.
The Mirror Blog supports all blogs powered by WordPress, including blogs hosted on wordpress.com. The setup is easy and you don't need to change anything on your blog host.
Here is the Mirror Blog application URL: