A blog is kind of like an online journal, only its there for anyone who wants to read it. People often group together to blog and comment on each others page. There are many places to blog for free, such as, Myspace, Blogger, and Live Journal. This makes it easier without the need of school skills.
Blogs in other classes are also useful. For example, in a reading class instead of written work, we could blog about what reading is and how we read. Paper work is soooooo boring and not to mention overrated! Blogging is also a lot more fun!