NUI Galway's Centre for Excellence in Teaching and Learning (CELT) have a fantastic resource page on using blogs in the context of teaching and learning. The page includes information on how to use the blogging functions embedded in the Blackboard VLE. See the following link:
Blogging has become a mainstay of internet culture, with millions of people using blogs to share their thoughts, opinions and experiences, promote businesses and have fun with their social circles. Blogging has a lot of uses and potential in the context of third-level education, including in the domains of teaching and learning as well as research. Whether you're working in the third-level context at NUI Galway or not, hopefully you'll find the information of use.