The maintenance of multiple WordPress sites can be tedious and time-consuming. The necessary tasks of updating plugins and themes and backing up your files and database site-by-site can take up a large chunk of your time, depending on the number of sites you manage. This is time better spent writing and blogging.
WP Remote simplifies and centralizes this task with its excellent free service. I have been using the service for more than a month now and it has been a great tool and time-saver.
WP Remote is a free service that provides a single interface to monitor your WordPress installations, back up files and data and upgrade plugins and themes. It is both a service that you sign up to and a plugin that you install in the WordPress sites that you want to manage with the service.