Blogging as a learning tool

This is an experiment exploring the uses of technology in the classroom. Traditionally, I have used BB journaling to get students to reflect on their learning experiences but it feels very unidimensional. After much research I am going to use the Blog platform to exchange thoughts about ideas, learning, psychosocial OT and  FW experiences. In addition, I am hoping to expand the professional networking and learning opportunities for the students as they post and seek information. What are your thoughts on blogging versus a BB journal for reflective thinking from students?