Yes. In fact, we strongly encourage you to. All forms of marketing will help you build the number of subscribers who attend your upcoming webinars. Once an attendee has registered, the BrightTALK email service automatically does the reminder emailing. You should also consider continuing to market the event once it is completed since the on-demand version can attract 3-4 times the size of the live day audience
Here's some tips on where and when to promote your content. If you'd like more information, please contact your Customer Success Manager.