Facebook has created a new plugin that works directly with WordPress sites, either WordPress.com sites or self-hosted sites. When you create a new post, the plugin will allow you to mention a page, which will add the post to the timeline of the page you mention. It also allows you to mention friends in a post and have it show up on their wall as well. Since the post are created via a Facebook App, it comes from within Facebook and your post gets the Edgerank benefit.
The link to the plugin is https://developers.facebook.com/wordpress/.
More details will come shortly. I will do a video shortly with the details.