Simple Footnotes

Create simple, elegant footnotes on your site. Use the [ref] shortcode and the plugin takes care of the rest.

Prospress

A new WordPress plugin that goes where no plugin has gone before. After a 30 second install, Prospress gives your WordPress site its own marketplace.

With Prospress installed, registered users can post auctions, place bids, provide feedback and make payments. Everything required to create flourishing marketplace for your WordPress community.

Dagon Design Sitemap Generator

Creates a highly customizable human-readable sitemap.

WP-to-Twitter

WP-to-Twitter is an awsome WordPress-Plugin, which allows you to submit a shortmessage for every new Post you´ve submitted so far. You can configurate the URL-Shortening-Service and get a lot of new Users from the Social-Network Twitter.

BuddyPress Registration Options

A WordPress BuddyPress plugin that allows for new member moderation, if moderation is turned on from the admin settings page, any new members will be blocked from interacting with any buddypress elements (except editing their own profile and uploading their avatar) and will not be listed in any directory until an administrator approves or denies their account. This plugin also creates bp profile field checkbox groups on the /register page from checked off groups or blogs in the admin settings section so any new members can join one or more groups or blogs that you specify at registration. If moderation is turned on admins can create custom display messages and email alert messages for approved or denied accounts.

Secure WordPress

This plugin provides important features that are crucial for the security of your WordPress site. SiteSecurity Monitor has implemented improvements after purchasing it. This is a great security plugin that has proven to be essential.

WP-PageNavi

Adds a more advanced paging navigation to your WordPress site.

Stardate

The Stardate plugin converts your post/page dates to stardates (ie: Star Trek). It also allows you to use a shortcode or function (for themes) to drop the current stardate wherever you want.

Updraft

The best backup plugin I’ve found for WP sites. Scheduling and remote storage options included.

Shiba Media Library

A great enhancement allowing you to tag media attachments and use the tagging in either the standard or shiba gallery, or in any other way tags might be useful