Weblogs or blogs are springing up all over the internet, but their introduction into the educational arena affords this communication tool a new format and set of users. Generally, blogs have been considered a personal online joural where outside users can comment on an individuals postings. Blogging as a classroom application allows for enhanced comprehension and communication among students as well as the ability to build deeper understanding across the cirriculum. Creating a collaborative learning community brings a whole new life to blogging.
Here are some free Weblogs or Blogs that might be useful to you for either personal or classroom ventures:
20 Six Weblog Services
Blogarama - The Blog Directory