A renderer that allows users to format text using Markdown syntax. From the Markdown website: "Markdown is a text-to-HTML conversion tool for web writers. Markdown allows you to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML)."
Add an icon that represents the main category of the post.
This plugin creates a toolbar that allows the blogger to easily include a Creative Commons license on each post. The license can be a default license or specifically selected for each post, or not included at all.
This is a slightly modified version of the default bookmarklet plugin for Phoenix. The default version puts the link in the link to url field and Bookmarklet 2 puts the link in the body of the post. This is good for people who are used to the Movable Type bookmarklet or who don't want their post title to be a url.
Here is a plug in that renders the tag, to show a breif table of contents for a particular category.
With this hack installed you can import posts and comments from a LiveJournal blog into a b2evolution blog.
The Captcha Image Plugin allows you to use Captcha images for comments and user registration, as a measurement against automatic spam attacks.
The Akismet plugin for b2evolution checks feedback through a central service (akismet.com) against spaminess.