ManageWP

As of 2011, estimates are that 25% of all websites are published with WordPress. As of March 2012, WordPress is on 72.

Managing websites can be a nightmare. Updates, login credentials, backups, migrations – if you keep an eye on more than one site, you know what we're talking about. ManageWP lets you to manage all of your websites from one, easy to use dashboard. You can log into any website with a single click. Updates from all of your sites are compiled into a single list. Scheduled backups make sure you have an up-to-date backup archive in case your websites need to be rescued. Clone Wizard lets you deploy your website from one server to another in a matter of seconds. ManageWP has everything a true WordPress professional needs, like security scans, uptime monitoring, SEO, plugin & theme management, analytics, sub user access, content moderation, and a lot more.