Blackboard is an extremely clunky virtual classroom that many schools and colleges use.
Many teachers avoid it because it is so poorly designed but they still somehow manage to sell it to schools.
While I hate going in and out of blackboard to post assignments, Backpackit it makes it easy.

Blackboard allows outside web pages to be displayed inside Blackboard. So when i post an announcement or assignment, I can just send an email with a “Note” in Backpackit and it displays in Blackboard.