#9 Ubuntu One

Ubuntu One is the personal cloud that brings your digital life together. It includes storage, sync, sharing and streaming – so that you have immediate access to your music collection, favorite photos, videos, important documents and more, at any time and from any device.

It offers 5GB of free storage and music streaming, and if you soared the word about it, you can earn up to 20GB extra free cloud storage with its referral program. Buy any track from its Music Store and it will be there in cloud for 6 months, which includes 20GB of cloud storage absolutely free. You can get more storage on Ubuntu One with a flat fee of $3.99, or $29.99 a year for each additional 20GB of storage. If all I needed was a simple storage service that also included music streaming, for $3.99 a month, I'd be fond of Ubuntu One. For me, though, there are better services.

Ubuntu One is available on Windows XP or higher, Mac OS X 10.6 or higher, Android and iOS.

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