Fictional Worlds and Canon

In Avatars of Story, one of the ideas Ryan presents is that "the fictional speech act creates its world through the very act of describing it, and its statements are automatically true within its refernce world." We talked about this in class and all the cool sci-fi multiverse aspects to this theory. It got me to thinking about a story's canon. For instance, when people write fanfiction, they can be accused of writing the story's characters in a way that's out-of-character, or the entire writing could be said to not fit well with the story's world. This can also apply to published works. For example, when a new writer gets put on a long-standing superhero comic, some fans might not like their treatment/version of the story. This would seem to support the theory that there's a certain standard "truth" to story worlds, and that characters and stories within that world can be written in a way that doesn't allign with this truth.
This goes back to what the book was discussing about truth, and how just because a story might not be fact in the real world doesn't make it a lie. Stories create their own truth, or canon, whether or not they actually exist. However it does make things interesting when considering alternate versions of stories and characters, and whether or not they create their own story/truth/world.
And on a completely unrelated note, I'm missing the comics convention this weekend because I had to go home for Easter, so I'm on the lookout for blogs on how awesome Gail Simone's talk was. (I'm a big fan--so disappointed I couldn't make it) So if someone writes a blog about her I'll be forever grateful. :)