Use Google Scholar to find articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the Web. Drawback is that not all articles are free.
Most college and university online databases are not free to the public, students must use a username and password to access them. However, as you search the web, you may find online scholarly journals; these are "open access" articles that are free to the public. Besides Google Scholar, there are many other resources for open access publications.