Academic Search Premier is a general database that contains both popular and scholarly articles from a variety of disciplines and sources. Great place to start if you need to confirm the viability of a topic.
The tips in this video will apply to most other EBSCO databases, including SocINDEX, CINAHL, SPORTDiscus, and more. Subject specific databases may have some special features like unique limiters, but otherwise they will function the same way. The name of the database will be listed above the search bar:
Each database is going to have a different focus and strength. To be succesful, you are going to have to try more than one of these.