To embed a YouTube video in a post: Click on "Post New Thread" button in forum index. Click on the "Media" control button in the editor. In YouTube, click on the "Share" button below the video. Copy (ctrl-C) the contents of the "Link to this video:" box. Paste this into the "Enter media URL:" box in the post you are creating. Click the "Embed" button in the post you are creating. Add any additional commentary you might have to your post. Click on the "Create Thread" button.