"When you’re teaching an online or hybrid class, you want to connect with your students and make the experience as personable as possible. Introducing yourself to your students through a video is a great way to begin your online class. They’ll love being able to see your face, hear your voice, and get to know your personality from the start."
Read more from the Techsmith blog at http://blogs.techsmith.com/for-educators/back-to-school-record-intro-video/.
You can also create a video using a webcam and/or screen capture software to show your students around your Blackboard course using the free software from screencast-o-matic.com.
For $15/year you can buy the full version of screencast-o-matic's software that allows you to record only the webcam and use scripts to record/caption your videos.
No matter how you record the video, when you're done, upload the video to YouTube and link to it or embed it in your Blackboard container.