“Bulletins are a great way to communicate with subscribers on YouTube. Just go to your channel, type an update, paste a video link, and click "Post Bulletin." Your bulletin will show up on your subscribers' homepage, in their Recent Activity feed. You can even send a video link to your other YouTube channel to let your subscribers know about it. Bulletins allow you to put context around any video or simply send your subscribers a written note. You can send bulletins from new “Post Bulletins” form on your channel,” posted Google. Here’s how it works: As you type the update to your subscribers, you’ll see a preview of the bulletin appear to the right of the text field. After you click "Post Bulletin," subscribers will see your messages in their Recent Activity feed. If you send a link to one of your own videos, you can see the impact your bulletins have in Insight, our analytics tool. Go to the video, then to “Discovery=>YouTube subscription modules=>Subscriber bulletins” to see how many people clicked the video links in bulletins you sent.