There are a variety of useful and interesting resources, mostly pdf's, at ths site including an Ideas for Using Blackboard document.  

Even though the resources available at the following link are neither Bb created nor Bb endorsed and I have not had an opportunity to review all of them, the ones I have had a chance to review lead me to believe that they could support your training efforts. 

Since these are non-Bb created resources, the links and the resources provided at them could be removed at any time by the individuals who created them.