Article: OPEN SOURCE TOOLS FOR PERMACULTURISTS - permaculturenews.org

A bunch of open source tools for Permaculturalists are summarised here.

eg Hemingway have a section on writing better blog posts (https://blogging.im/betterblogposts) covers basics like brainstorming ideas and improving readability (which obviously the Hemingway Editor helps with too) to optimizing headline length and tweaking for search engine visibility.