Open Access materials can be used to further your own research and adopted for use as teaching materials. While many OA resources can be found using traditional search strategies, you can also take advantage of some excellent resources designed specifically to locate open materials.
Paywalls prevent researchers from getting immediate access to scholarly works to which they do not have subscription access. While the WVU Libraries provide fast access to these materials through Interlibrary Loan services, waiting for them to arrive can disrupt your research process. Fortunately, there now exist some excellent resources for getting faster, legal access to paywalled materials.