The blogosphere is rich in resources for people who want to get started.

About Blogs
Weblogs defined by Jill Walker at jill/txt
How Blogs Work by Ken Smith
Blogging vs. Posting by Will R. at Weblogg-ed
Using the Tools

How to Use Bloglines by betterdays (tip Ken Smith)
RSS for Educators by Will R. at Weglogg-ed
How to Set-up an Account at Flickr by Alex Halavais
Why Blog?
Lessons Learned by Anne Davis

Lessons Learned by Will R.
More on Weblogs
Learning More about Weblogs: A Webliography on Weblogs at Kairosnews
Citing a Weblog Entry in MLA Style at Jerz’s Literacy Weblog
Citing a Weblog Comment in MLA Style at Jerz’s Literacy Weblog
Grading /Evaluating Weblogs by Dennis Jerz at Kairosnews

Update 4/29/2006: For some reason, this post is attracting a lot of spam so I’m turning off comments on it. Email me if you would like to comment on it and I’ll manually post.