Ken is a teacher who uses Camtasia Studio to record all his class lessons online for his students. He's tried Blab.IM and YouTube Live. Leo says that Google Hangouts is also good. They use something called WebRT which allows him to share a link for a larger number of people to watch, while having up to 10 people participating. He can also have a chatroom. Afterwards, it gets saved automatically to YouTube. It can also be watched on mobile. Hangouts is the best way to go here.