Backend: Editor
Amazon Media Button
Adds a button to allow Amazon.com search which are insertable into your entry
CKEditor Plus
Uses CKEditor as the default WYSIWYG editor. For any JS-Editor usage: Recommended! After installation, go to the configuration screen of this plugin for further instructions.
Coppermine Selector
Select images from a Coppermine gallery in new entries
Custom Permalinks for Entries
Defines custom permalinks that can be used to access a specific entry. It can only use URL patterns which are NOT YET in use - using custom permalinks within the /archives/ structure is thus not possible. But any (virtual) other directory is.
Easy Podcasting Plugin
Adds "podcasting" capabilities hinzu (RSS enclosure, Video/Sound-Player)
Extended Editor Buttons: Youtube etc.
Offers more buttons to the editing screen to implement easy access to HTML/JS snippets like Youtube etc.
LJ/MySpace/Serendipity Update Plugin
Uses XMLRPC to post to your Livejournal/MySpace/Serendipity
Microformats
This plugin provides an easy way to publish reviews (or events); it supports the respective microformats.
Multilingual entries
Allows to create multiple language versions of an entry
Rules for publishing
Applies some checks before an entry is published. Does not work with WYSIWYG-CKEDITOR!
Show Emoticon/Smiley toolbar
Shows a toolbar to select emoticons to insert into your entry.
Split long entries
Enables you to split longer entries into several subpages and provides you with an auto-generated table of contents
Static Pages
Shows static pages inside your blog with your blogs design and all formattings. Adds a new menu item to the admin interface.
Trackback-Control
Allows granular control over how trackbacks are sent when creating entries
Typeset/Extended Buttons for non-WYSIWYG editors
Adds buttons for various encoded typeset entities and other extended actions.