Is Sarah Palin on Facebook?

The leaked manuscript by one of Sarah Palin's closest former aides allegedly reveals more about the Alaskan governor than what is stated in the book; namely, a private email for Palin which, when searched in Facebook, comes up under the name "Lou Sarah." Lou appears to be a devoted fan of both Mama Grizzly and her daughter Bristol, and "likes" herself quite a bit as well. She is such a big fan that she often posts in a tone that might be used by a publicist. In one such post, Lou Sarah wrote on her page, "Edge Fitness is seen in upcoming TLC "Sarah Palin's Alaska" Sunday night episode because the Palins LOVE Alina!" But how does Lou know the details of an episode of Sarah Palin's Alaska that has not yet aired?