Recs.
Updated
Automatic incremental backups, cloud based unlimited, to an external hard drive or friend's computer (over the internet).
Crashplan home edition has been discontinued.
SpecsUpdate
Pros
Pro Versioned backups
No need to worry about data loss from corrupt files or other non-catastrophic failures. Old versions of your files are saved to prevent data loss. There are no limits enforced on how long you can keep the versioned backups.
Cons
Con Home edition discontinued
They are no longer accepting new signups or subscription renewals. CrashPlan's home edition will be shut down on October 23, 2018.
Con Slow
Multiple people have expressed dissatisfaction with Crashplan's upload speed and the companies unwillingness to acknowledge the issue. It's become such a common complaint that there's a Twitter account that compiles tweets with people who are frustrated with Crashplan's upload speeds.