The goal of HeyZap is to be the "YouTube of casual gaming" by giving site publishers a way to embed more than 6000 casual Flash games into their sites with a single embed code. Their business model (more detail from TechCrunch) is to collect revenue from ads within the games using the MochiAds ad platform and share some of that with developers. The publishers using the code don't get revenue, but get increased traffic to their sites.
Facebook has launched a new Continuous Live Video API that enables developers to broadcast long and persistent streaming video to the world's largest social network. Previously, Facebook Live streams were limited to 90 minutes, but thanks to the new API, third parties can broadcast longer events.