Manage WP is a WordPress control panel for those who manage multiple sites either for clients or themselves. I’ve been using ManageWP for more than a year, and I could never go back to doing things the “old-fashioned way.” Best feature is the ability to update themes and plugins across multiple sites with a single click. Other important features are one-click login to any of my WordPress control panels, the ability to track down which sites have which plugins, and the ability to add a page or a plugin to multiple blogs at once. Words can barely express how much I rely on Manage WP. ManageWP also does site backup, but since I’m so in love with Backup Buddy, I don’t take full advantage of this feature.