An easy way to publish an email newsletter is to use WordPress and Mailchimp. In a nutshell Mailchimp can pull the content from your blog post and send it via email as an e-newsletter (you can also post straight to facebook, but that will be the subject of a future post). Once you have a template setup, one of things you need to be careful about is how you insert an image into your blog post.
The video below gives a brief explanation on the best way to insert images so that they look good in both your blog and your newsletter.