The easiest way to search for research articles is to use Google Scholar.
Here are two excellent resources for Annotated Bibliography.
You can also find articles using a library database.
A library database is an organized collection of articles that lets you search search for a particular topic, article, or book in a variety of ways (e.g., keyword, subject, author, title).
Materials and information available in a library database may never appear in a Google Scholar search, or in a Google search. If Google isn't giving you what you need, try one of the databases below: