Jackie has a very good reflective post coming out of unsymposium 0.3 about style, writing, imagined audiences and what her blog does. It is a good explanation if you’re still not sure what this idea of an audience and your blog is about, or who it might be. As she realises, her audience are probably people similar to you, and that this is your imagined audience. The cool thing about a blog, you can imagine this audience but over time an audience will arrive, if you have something to say to other people like you.