Many people want to go completely with cloud services, but many, like me, like having a backup of our cloud data somewhere besides that service. I keep backup's of my Google and Evernote data on my home laptop, which also gets saved on my archive hard drive.
But what if you don't want to use any sort of backup/download on your own devices? What if you are going completely Chromebook?
Here are two of the services that are out there:
1. Backupify: automatically performs scheduled backups of 10 different online services, including Google Apps, Wordpress, Facebook, Flickr, and more. They offer Twitter backups for free and three additional premium plans that range from $3.95 to $14.95 per month, depending on how much storage you need. Backupify also encrypts data, gives you version history, cloud based restore, and two-factor authentication. They seem more geared towards the enterprise vs. individual users.
2. Revert.io. It automatically backs up your Evernote, Tumbler, MailChimp and ConstantContact data in the free version and keeps the data for 30 days. If you upgrade to the paid version ($9.99 per month) that will keep your data longer and also add Dropbox, Highrish and Pipeline. Google Drive backup is coming soon. There is also a "Team" version coming in 2015 for groups and organizations, like schools.
My district uses Backupify to back up all 26,000 Google Apps accounts and data. It has come in handy for restoring user files that they deleted, then realized they needed back later. It's also very easy to use and set up.
Backing up your data and files is very important. Make sure you have a plan.