This is a quick walk through on how to:
This uses the free heroku and mailgun plans. If you get stuck on any part, check the full code here.
In this list, I will be typically be talking SEO as it relates to Google because Google will likely account for the vast majority of your inbound search traffic. Additionally, if you rank highly on Google, you will probably do well on other search engines anyway. Just like in football if you could play in the Major league you would most likely kill it in the minor league I would begin by explaining why SEO is important talk a little bit about what SEO is about and talk about how those concepts relate to the world wide web. Then talk about some of the things you could do to optimize your site from top to bottom of a typical webpage.