I have been thinking about how blogs and forums do really similar things. How do I decide educationally which tool to use for which purpose?
I found this site a useful explanation of the differences between blogs, forums and wikis.
It appealed to the visual learner in me. If anyone else has had the same thought I hope it helps you.
http://www.adelaide.edu.au/myuni/staff/resources/tutorials/content/Differences_between_Discussion_Boards__Blogs_and_Wikis.html