If you want to leave a comment (and please do!) just click the speech box with a gray number in it just to the right of the date and directly below the title of the post on the left side of the page. The link takes you to a new page which prompts you to enter your name, email, website (optional) and comment. Additionally, below the comment-box are two check-boxes which allow you to register to receive notifications via email about follow-up comments and/or new posts/updates. Happy commenting!