Are There Rules to Blogging?

Iris from Pegasus Librarian writes "Funny to admit this nearly 150 posts into my blog, but I really don't know what I'm doing" in her blog post Blogging Confusion. I have to hope that most bloggers have asked this at some point - after all there are several places in the blogosphere where people offer rules or tips about blogging. They have made me question whether my desire to post on an subject would be outside the boundaries of my blog. However, I have decided not to pay much attention to them. Unlike Iris, I started this blog to detail my journey through graduate school - so there is a specific stated theme. However, what I have come to love about blogs is the mix about which people post - whether personal, library related or work related. So, I have lightened up on myself. What is appropriate??? I have no idea. I think it is probably easier to sometimes identify that something is not appropriate. However, I can honestly say that I don't think I have ever read something that I deemed inappropriate on any of the blogs that I read. I don't have any rules about my blog and I'm perfectly happy with that.