1. Google Drive is a personal cloud storage service from Google that lets users store and synchronize digital content across computers, laptops and mobile devices, including Android-powered tablet and smartphone devices.

  2. Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.

  3. Secure File Storage and collaboration

  4. SpiderOak makes it possible for you to privately store, sync, share & access your data from everywhere.

  5. ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.

  6. Zoho is an all-in-one online office suite.

  7. SugarSync is a cloud file sharing, file sync and online backup service that is simple, powerful and easy to use. Get a 30 day free trial!

  8. Google's encompassing suite of cloud-based business apps.

  9. Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.