If you’re looking for a free newsletter tool for your installation of WordPress and have less than 2,000 subscribers, the WPNewsman plug-in is fairly nice. They allow you to style your newsletters, entering shortcodes for post-specific content, as well as the post entries and separators. Once finished, you have the option of selecting by author, category, and date range, and creating a newsletter to use excerpts, fancy excerpts (which includes html), and full post content. Unfortunately, the full post content turns HTML into text and removes paragraph breaks, leaving one giant mass of text and html code, commingled. Read more