Once I needed a solution for live streaming videos. Yes, I have experience with Adobe Media Server, and it worked very well. Recent I discovered that Youtube has free services for online streaming videos, just one streaming video per account, but that’s enought. Adobe Flash Media Encoder is not on the list of supported encoders in the Youtube Streaming FAQ, but that does not mean that the encoder is bad. Also Vmix is another app for streaming. I can say is one of the best choise if you have advanced requirements on the source side (Cameras, Videos to send on streaming). Vmix is the app all-in-one: streaming client and video switcher, and many other functions (even tally lights).