Backup your entire WordPress website regularly and automatically
Extend the reach and usability of your PeoplePond profile, including your verified identity, with the PeoplePond Identity Widget in the sidebar of your WordPress blog. It will display a badge to your blog readers detailing who you are and what other services they can follow you on.
Shashin has many features for displaying your Picasa photos and videos in your WordPress posts and pages
Work around for some versions of libxml2 2.7.x that strip out brackets when parsing XML. This plugin fixes XML-RPC requests that are mangled because of this problem. The real fix for this (making the use of this plugin unnecessary) is to use PHP 5.2.9+ with libxml2 2.7.3+.
Control the number of posts that appear on the front page, search results, and author, category, tag, and date archives, independent of each other, including specific archives.
Allow multiple user accounts to be created from the same email address.
Keeps your email safe from spammers when you want to use mailto: links.
Show “Readers who viewed this page, also viewed” links on your page. Much like Amazon.com’s product pages.
Table of Contents Creator (TOCC) will generate a table of contents for your pages, posts and forum comments. New comments, pages, posts and post catagories will automatically appear as soon as they are published. A great new feature of TOCC is the ability to include automatically generated page and post summaries below each item in the table of contents.
Easy way to add meta robots tags to WordPress pages
The Store Locator plugin for WordPress empowers web developers & web site owners to easily manage and display any set of important stores, products, or other locations on their website in an easily searchable manner. Uses Google Maps.
Removes the WordPress update nag that appears at the top of all admin pages when a new version of WordPress is released.
Configure SMTP mailing in WordPress, including support for sending e-mail via SSL/TLS (such as GMail).
Makes most elements on your site editable with a simple double-click of the mouse. Version 1.6 brings editable categories and other goodies.