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.
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.