Step 1: Enter your course, then click on either Communication button on the left side of the screen.
Step 2: Now click on the Roster link..
Step 3: Now you will a few options to view the roster. The easiest way to view the entire course roster is to click the List All tab, and then click List All.
Step 4: This will display all of the students enrolled within your Blackboard course. Notice
that some students will chose to allow their email address to be shown. This is one way to find a student's email
address. When you are finished looking at the course roster, click on the 
button
at the bottom right corner of the screen.