Many schools and colleges are experimenting with blogs. But some teachers are a little concerned about their students using commercial blog sites (such as Blogger) since they have no control over what they do with their blogs.
A new service can resolve this problem by giving teachers control over blogs. 21Publish allows teachers to become a blog portal. You control who can create a blog, what the blog can do, what's in the blog - even what the blog looks like. It's currently in beta and provides a free service until April 2005. But even then, the paid service will only cost $9 per month (for up to 50 blogs).
It seems a good way to provide a controlled service to students or fellow teachers.