There are many different assignments on blackboard that you can use to engage your students. A great example of this is blogs. You can create a “course blog” which looks like Facebook and familiar social media, or you can create “Individual blogs” which posts as single blog entries instead of a list of all the student blogs. All students can see each others’ posts and can interact with one another.
For detailed instructions on creating and using a course blog visit Blogs at Blackboard Help.