Admin WordPress Plugins
Imsanity
Specify a maximum size for images uploaded to WordPress. If any image exceeds that size, it will automatically scale it down, on the fly.
Slash Admin
The WordPress admin can be customized in all sorts of ways. Tweak the front-end and back-end settings for admin users.
WPCore
Bundle together a collection of plugins from WP.org and around the web, then install them all at once automatically on your site.
The Events Calendar
Gives you full control over every aspect of your events list and calendar. Just add events and everything is output automatically.
404 To Start
Easily point a 404 error page on your WordPress site to any page or link, even one not on your site, with a simple text box.
Page Links To
Link any WordPress post or page to an external URL, with a simple textbox, even outside of your site in a new tab.
Google Analytics Dashboard for WP
Add Google Analytics stats to your WordPress admin in strategic locations so you can view contextual stats without ever having to leave WordPress.
Customer Area
Set up a private client section of your website where you can store pages, file downloads, and push information to, personalized for each user.
Easy Custom Auto Excerpt
Automatically add an excerpt instead of full content to your homepage and archive pages and customize the output size and look.
wpLike2Get
Easily give your users the opportunity to like or follow you on Facebook, Twitter or Google+ on WordPress to reveal a download link.
Duplicate Theme
Choose any theme that you currently have installed on WordPress and duplicate themes. You can also create child themes.
Limit Login Attempts
Choose how many times a user can attempt to login before they are blocked from access to your WordPress site, to prevent brute force security attacks.