The devot:ee add-on keeps you up-to-date on what add-ons are out-of-date on your ExpressionEngine sites.
Draggable gives you the ability to sort custom fields, statuses, and categories without having to update order numbers or click up and down arrows, refreshing the page each time.
Developer is an accessory that allows EE site developers to quickly access the most essential sections of the control panel during site setup.
dashEE is fully customizable ExpressionEngine control panel dashboard alternative.
Deviant allows you to control, globally or on a per-channel basis, where authors land after publishing, updating or deleting entries in the EE control panel. An essential extension for every EE install.
This is an EE2 port of the EE1 SL Developer Info module. It also improves upon it, bringing a lot more information into the Channel page view.
This add-on integrates CK Editor and CK Finder with Expression Engine 2.1
Makes the ExpressionEngine template editor read-only for templates under source control.
Custom URL shortening services for your EE site
Disable Default Memberfields (ddmf) is a module that disables the default memberfields like (ICQ, Yahoo IM etc) in the CP of ExpressionEngine.
Disables the EE1 template editor for users to control templates via source control. This prevents users from creating out of sync issues between the server and repo.