#7 Microsoft SkyDrive

It was previously known as Windows Live SkyDrive and Windows Live Folders. It allows users to upload and sync files to a cloud storage and then access them from a Web browser or their local device. It is part of the Windows Live range of online services and allows users to keep the files private, share them with contacts, or make the files public. Publicly shared files do not require a Microsoft account to access.

The service offers 7 GB of free storage for new users and, for one year, an additional 3 GB of free storage to students. Additional storage is available for purchase. If you want 20GB more, it will cost you $10 a year. 50GB is $25, and 100GB is just $50 annually. The service is built using HTML5 technologies, and files up to 300 MB can be uploaded via drag and drop into the web browser, or up to 2 GB via the SkyDrive desktop application for Microsoft Windows and OS X.

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