While I’ve promoted other online backup solutions before, IDrive is an established online backup service that just caught my eye for some of their advanced features.

Like the competitors, IDrive offers personal and business plans for syncing to their servers. With continuous backup, every 10 minutes, modifications are uploaded over 128-bit SSL for security. In addition (for data security), files are stored using 256-bit AES encryption with a user-specified key that is never retained by IDrive’s storage servers. For larger files, or if you choose to disable the automated “Continuous Data Backup” feature, you can set schedules and no data on the server will be changed until you run a synchronization.

IDrive transmits files securely AND stores them safely.

The desktop app also makes it easy to restore old versions of files — up to 30 revisions are kept, and all versions except the newest don’t count towards the storage limit. (Isn’t that cool?)

Automatically keep track of old revisions of files so you can "go back in time" before a disastrous edit or deletion.

The basic free plan includes 2 GB of storage, while the the personal plan includes 150 GB for $4.95/month, or $49.50/year on a yearly plan (essentially two months free).

IDrive is available for PC and Mac, and there are even apps to backup and synchronize contacts with BlackBerry, Android and iPhone devices.

One of their advanced features that I find very enticing is the ability to backup WordPress sites via a plugin:

The WordPress backup feature will keep copies of the site’s database and content files, extremely useful in the case of a server crash or hack. Note: it looks like the WordPress backup feature is free and does not require a paid membership.

If you’re looking for online backup, it looks like IDrive offers it all.

Disclosure: IDrive sponsored this post. However, all opinions are my own.