Ally is a tool that checks content in Blackboard and automatically generates a range of alternative formats for students. The student sees an icon that they can click on to select the alternate format. You see both the icon for the alternative format and a gauge that tells you how accessible your document is. If your documents are not fully accessible, Ally provides you with information to make fixes.  You don't have to do anything for students to benefit from this tool.  There is a Quick Start guide for anyone who wants more information