The document discusses three types of blogs that can be used in language classes: tutor blogs run by the teacher to share course information, class blogs as a collaborative space for teachers and students, and learner blogs as individual student spaces. It provides guidance on starting a classroom blog, such as choosing an easy platform, teaching netiquette, keeping posts short, informing parents, using correct grammar, not grading blogs, challenging students, and giving the blog time to be effective. Potential uses of classroom blogs include providing reading practice, guiding students to resources, enhancing literacy and writing skills, encouraging shy students, stimulating discussion, creating an online portfolio, and building relationships between students.