In addition to using the databases, you will glean information from websites. You'll want to be sure to do an evaluation of the sites you choose to use. The CRAAP evaluation tool in the left-hand column is one method for evaluating sources.
Here are a few recommended websites:
The Agency for Healthcare Research and Quality (AHRQ) includes a wealth of information including:
SIFT Evaluation
The SIFT method focuses on moves -- or things to do -- that ideally are built into habits, and then habits of mind.
Stop
Investigate the source
Find trusted coverage
Trace to the original