I need to find articles for a psychology paper. Where's a good place to start?

In general, PsycINFO is a great database to use when searching for articles on psychological topics.

Depending on your topic, there are other databases you might find helpful as well. ERIC is a great database for people doing research in educational psychology, MEDLINE Complete is excellent for neuroscience topics, and SOCIndex can be very useful for social psychology research.

Take a look at the A-Z databases list and filter by subject (psychology) for more option.