Whenever you follow an external link (a link outside of this course website) you may use your browser's back button to return to this course. If the back button is grayed out, then close the external site's window to return to the course.

If you are working on a PC, you will need to click on the "X" in the upper right hand corner to close the external site's window.

If you are working on a Macintosh, you need to click on the upper left hand corner box to close the window.