Crowdcast is a multistreaming platform for private, interactive, supports webinars, and has the capabilities to reach any size audience and connect with your community. Crowdcast is designed to help you reach, grow, and engage your audience.
WebinarJam got really bad the last couple of years we used it (2 years ago). Crowdcast support has been better and doesn't fail like WebinarJam. Facebook had a bunch of issues as well and isn't the ideal solution in my opinion.