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
Here is my primitive blog which took me about 30 minutes to set up!

Examples of other blogs:
Shows different ways to get free technology tools.
Deals with educational issues.
How to integrate technology into the classroom
Thoughts of an emerging edublogger
Introduction to blog terms
Assessing student blogs
A math blog
Good example of an educational blog
An ELA blog
A CFF coach blog
Good ideas on why to blog
A very cool blog!