Just recently read yet another newspaper article on the internet which referred to a forum/discussion board as a blog.  You would think newspapers would know the difference.

[quote/](Edited)
Forums are like social mixers, where everyone is at equal level, milling about and discussing with others.

Blogs are like a keynote speech where the speaker (blogger) is in control of the discussion, but allows questions and comments from the audience.

Blogs are journals often authored by one individual, and sometimes teams.

Full definition at http://www.web-strategist.com/.....and-social-networks/
[/quote]

I have to laugh, the definition I came across, the one above says forums are "where everyone is at equal level" giggle.  But either way a blog is not the same as a forum.