Here are some resources to help you develop your discussion topics.
Free and open to the public. Quality articles written by professionals. We have current and back issues, in print, in the library.
Free and open to the public. Organized by general topics and written by professional.
The Psychology section of one of the most prestigious science publication in America. All articles are writtne by leading experts in their field. Some articles will be behind a paywall. If you encounter this, please contact me and I'll help you get the desired article ASAP.
Please note, academic articles are written for professionals by professionals. Though they provide an incredibly in-depth and high-quality resource, they are very limited in scope. Using these articles in conjunction with popular resources will help you develop both a broad and deep understanding of your topc.
Here is an excellent cheat sheet for APA citation. It covers just about every resource you might use for you discussions. (Courtesy of Kent State)