What are the best cloud backup services?

Selective Sync is a feature of the Dropbox desktop application that allows you to select only the folders you want to be synced to your computer.

Many mobile apps can and do use Dropbox for storage. This means not just that your files are accessible on the go, but that those apps automatically get live syncing with your desktop and the web.

Stash is a local sync folder similar in functionality to Dropbox.

Mozy end-users are not susceptible to social engineering. At Mozy, there is no one person who can authorize the deletion of a given individual’s data. Our process of cleaning and deleting a customer’s data is a very structured and automated process, and you can’t call us up and short circuit...

Data is locally encrypted before uploading to Spideroak. They cannot recover your data even if they wanted to since it is stored in encrypted state on their servers.

Thus you have a single service for all of the things instead of having to use multiple clients or services.

No privacy concerns.

Unlike other backup programs that store data in proprietary formats, Arq stores them in an open document format allowing for easy viewing.

Transferring as well as storing ones files allows for 256bit encryption, making sure ones files are always secure.

$0.007 per gigabyte per month is comparatively cheap and allows for large amounts of cloud storage.

For users in the US there is a option to receive their backup data on external media, meaning not only is there a backup in the cloud but you can order hard backups anytime.

Does not require deep system knowledge to operate Carbonite's software.

Same price a Google Drive, but more flexible as you pay for what you use (Google Drive you have to jump from 100 MB to 1 TB for example). Also supports larger backups.

Versioning can be enabled at no extra cost so you may retrieve older versions or deleted files.

If you use Office 365 with OneDrive, you can share a file to edit collaboratively in real time.

It integrates with Word, Excel, PowerPoint, etc as if you were using OneDrive locally.

Encryption allows the use to access their files with only their own keys and the deduplication saves on costs of storage as any duplicate file will be removed automatically. So not only is the platform safety minded but cost is taken into account for the user as well.

Everyone with an account will get 50 GB of online storage. It is a simple sign up, just a minute's work.

The user can access the stored files or upload new files using the browser. Additionally they can use their phones or tablets (Android and iOS devices). On windows MegaSync is provided for automatic backup and safer file access. To further improve access security, there is also an extension availab...

There are plug-ins for applications that allow interactions with Box.

Such as advanced sharing options, task assignment, notifications.

Norway has rigorous data protection laws. Governments or judicial authorities should not be able to have a look at your data through legal means.

iCloud syncs a users settings and files across a range of Apple hardware making for a simple solution to backup and sync data across ones Apple devices.

Integrates different office tools such as Keynote or Pages for writing and presentations, etc with iCloud.