There are a few primary resources to search for open access articles relevant to social work: Google Scholar, ERIC, and PubMed.
Google Scholar primarily searches the following: academic publisher websites, Google books, institutional repositories and .edu sites, .gov sites
ERIC is a federally supported database of education-related articles.
PubMed is a federally supported database of health-sciences related articles, including psychology, psychiatry, and public health. PubMed Central is a subset of PubMed and is composed of all open access articles.
Google Scholar searches the academic, scholarly Web for peer-reviewed papers, theses, books, abstracts and articles. If the item is freely available, you will often seen a PDF link on the right.
Video tutorial on the advanced search in Google Scholar, produced by North Island College, British Columbia: