TypePad: Hosted Weblog Service:

"TypePad is a powerful, hosted weblogging service that gives users the richest set of features to immediately share and publish information.
TypePad makes it easy to:
-Publish a weblog
-Publish a photo album
-Maintain lists of your favorite books, music, weblogs, and links
-Personalize your site's colors, layout, and design
-Connect with others who share your interests
-Limit who reads your weblog through password protection

TypePad lets people communicate, publicly or privately, with the audience of their choosing "

This last feature could be particularly interesting for those of us in education.