A periodical is anything that is published periodically (weekly, bi-weekly, monthly, quarterly, etc.). It includes
Because they are published frequently, periodicals are the best sources for current information.
Current events are usually discussed in periodicals long before they become the subject of a book.
Periodicals often contain information on the latest trends, products, research and theories.
General / Multiple-Topic databases cover a wide range of subjects. They are a good starting point. Below are two of them. Use your portal login to access the databases when you're off-campus.