To find articles within journals, use Indexes and Databases. These are the best ones to start with:
If you do not see a .pdf link to a journal article, look for the 
button. We might still have access to the article. Use this same button to request an article from elsewhere if UCSB does not subscribe to it.
Select "Article Indexes and Research Databases" to find databases by subject. Use a database or two that is most recommended in that subject.
Many of the journals indexed in specialized databases are scholarly but those databases do not tell you whether a journal is peer reviewed or not.
To find out if a journal is peer reviewed look at the submission process on their website for authors.
You can also ask a reference librarian.
Scholarly journals (also called academic journals) contain articles written by, and addressed to, experts in a discipline. Scholarly journals present the research of experts in a field, although these journals also often carry opinion pieces or even advertisements unique to the field addressed by the journal. Publication cycles vary for scholarly journals, ranging from yearly to monthly but most frequently they are published bimonthly (every other month) or quarterly.
Peer-reviewed journals (also called refereed or juried journals) send submitted articles to one or more experts for review before deciding to publish them. This review process helps ensure that published articles reflect solid scholarship in a field. Most often, the experts reviewing an article make critical comments on the text, comments that the author must incorporate into the article before its publication.
While not all scholarly journals are peer-reviewed, it is usually safe to assume that a peer-reviewed journal is also scholarly.
Look for the HTML version of an article to download these items as it's difficult to extract a high quality image from a pdf file. Be sure to cite where your images come from!