Below are some established, high-quality websites useful for a many types of design-related research and there are endless others you can find on your own. However, when doing web-based research, remember to carefully evaluate the accuracy and reliability of information your find on the open web.
The Library's Source Evaluation website can help you with this evaluation process.
Use the College of DuPage OFTI site to learn about OFTI classes, degrees, and faculty at COD.