Wimba Create - is a very useful tool to use for designing elearning material. It can be a add-in in Microsoft word, and it allows to covert word docs into web pages... that are very easily uploaded into blackboard.
I am using it to display a few reading materials for sudents to make it easier for them to navigate through in an interactive way.
There are other features that i have not used in wimba create as yet. but i think it is really useful so far.