ALA’s ALCTS (Association for Library Collections & Technical Services) has been presenting and publishing RDA webinars since 2010.  You can register for live upcoming presentations (this also gives you unlimited access to the recorded webinar); buy recordings up to two weeks after the live event; or wait six months until the recorded presentation is made available without charge.  These webinars can be invaluable for initial training, for learning how to apply RDA in a new context, or for a refresher.

Upcoming webinars are listed here:

http://www.ala.org/alcts/confevents/upcoming/webinar

Cataloging and RDA webinars, specifically, here:

http://www.ala.org/alcts/confevents/upcoming/webinar/cat

And free RDA webinars can be accessed here:

If you’re curious about ALCT’s other webinars, check out their general playlist on YouTube:

https://www.youtube.com/user/alctsce/playlists