I have had some experiences with these bloging websites. I have used edmodo, blogger, and posterous. Last year I used edmodo for my classes. It was a really great way to share resources with my students and provide a place for the students to collaborate. I have used, and obviously am using, blogger. I used posterous in a different class and I really liked its ease of use. You simply send an email to posterous and it changes it into a post on your blog. Like all the other blogging resources, it is a great way to share and collaborate. This year I really hope to have my students start blogging about their classroom experiences, specifically labs, and what they learned. It is a great way to reflect about their experiences and allows students to make connections to the material.
This year, I am utilizing moodle. It is far more advanced, and subsequently more complicated to set up and use. Moodle is a Learning Management System (LMS) that allows teachers and students to share resource and take assessments. I am really excited to develop my courses and utilize this to it full potential. It is a great way for students to receive extra help, assess their knowledge/abilities, and share and collaborate.