Here are a couple of sessions I have been thinking about:
1. Who Are You Writing For?
Often, blogging is tough because you don't really know who is reading your stuff and why they are reading it. I'd like to have a group discussion about how thinking about audience can be helpful. Are you writing for other bloggers? General readers? Avid readers? Are you writing with the industry in mind? Answering some of these questions can not only make writing easier, but clarify your vision of what you want your blog to be.
2. Blogging Hacks
This one is about sharing computing tips and tricks. I would start the session (in an A/V equipped room) showing off some of the tools I use in my daily workflow: DropBox, Skitch, Text Expander, OmniFocus, and others. Then, anyone else can share the tools they use to make their blogging lives easier. (Note: this is not primarily about publishing platforms (Wordpress, Blogger, etc) or code. Others more expert than I should consider leading a session about any or all of those things).
I have more ideas, but those are mine for now. Check out the Book Blogger Unconference site for more info. Hope to see you there.