Do you know anything about blogging?

You can use the Discussion tab on a wiki to simulate a blog.

You can use School Fusion after class tools to put blogs on your class page.
These blogs may include podcasts and slideshows.

You can use any of the available free blogs out there but most of them limit the amount of space you can use.

It is actually really easy once you get started. I like www.edublogs.org.
Here is my primitive blog which took me about 30 minutes to set up!
www.nmahosky.edublogs.org

Examples of other blogs:
http://freetech4teachers.blogspot.com/2008/12/radiobeta-tune-in-world.html
Shows different ways to get free technology tools.
http://www.edweek.org/ew/section/blogs/index.html
Deals with educational issues.
http://ilearntechnology.com/?m=200902
How to integrate technology into the classroom
http://khokanson.blogspot.com/
Thoughts of an emerging edublogger
http://blogagogy.wordpress.com/assessing-blogs/
Introduction to blog terms
http://autonolearner.blogspot.com/2007/06/assessing-student-blogs.html
Assessing student blogs
http://www.blogger.com/profile/08462283847470560887
A math blog
http://feedforthebrain.edublogs.org/
Good example of an educational blog
http://larryferlazzo.edublogs.org/
An ELA blog
http://thomas-place.blogspot.com/
A CFF coach blog
http://davidwarlick.com/2cents/
Good ideas on why to blog
http://coolcatteacher.blogspot.com/
A very cool blog!