Scopus

Scopus is a database from Elsevier. Go to Scopus by clicking here.

It is a large abstract and citation database of peer-reviewed literature and quality web sources with smart tools to track, analyze and visualize research. It's designed to find the information scientists need. Quick, easy, and comprehensive, Scopus provides superior support for the literature research process. Elsevier has approached the publisher of each journal to request whether they can source and index the abstract and references for each article. In most cases, Elsevier holds a subscription to the journal and publishers are aware that Elsevier is covering their titles. 

Using Scopus as a researcher you can:

 tutorials

Two more videos are about advanced searching and expanding your search. For more information on Scopus see these tutorials.