Here is a short list of resources for evidence based medicine as well as two presentations on the subject by Dr Litaker.

 
Evidence for foreground questions:
PubMED
SUMSearch
 
Worksheets to appraise evidence:
Center for Evidence Based Medicine(Downloads)
 
Critically Appraised Topics (CAT) databases:
Center for Evidence Based Medicine (Cats)
 
Dr Litaker’s presentations:
Asking the Question and Finding the Answer

Applying Evidence in Practice