After returning from a presentation at SITE 2011, where technology educators from around the world shared their best ideas, projects, and perspectives on improving education, blogging was one of the topics. Presenters covered many benefits of blogging, including; improved writing skills, awareness of issues and trends, better comprehension and much more.
There are lots of online resources about blogging and educators are compiling lists of them to help those starting out. PBWorks has created a Wiki with resources for building a blog that outlines some of the things to consider:
Examples of Blogs
Online Safety
Hosting Options
and more...