weblogs:the new class bulletin board?

from azcentral.com

For teachers, blogs are attractive because they require little effort to maintain, unlike more elaborate classroom Web sites, which were once heralded as a boon for teaching. Helped by templates found at sites like tblog.com and movabletype.org, teachers can build a blog or start a new topic in an existing blog by simply typing text into a box and clicking a button.

Such ease of use is the primary reason that Peter Grunwald, an education consultant, predicts that blogs will eventually become a more successful teaching tool than Web sites.

this artilce discusses their use with very young children, but much of it is relevant to us, i think.