American University, Washington College of Law Program on Information Justice and Intellectual Property, Best Practices Webinar series focusing on copyright, fair use, OER selection and search strategies.
OER Commons Starter Kit: A collection of informative and training videos and webinars concerned with all things OER
OpenOregon Educational Resources has an extensive library of informative webinars concerning various aspects of adopting OER
CCCOER Webinars California Community College's OER webinar series is one of the best informative series I have found on the subject