Hi
Im about to backup online, but theres alot of choice, alot of pricing, and alot of difference features.

I used Backblaze for a few months only to find out if i delete a folder from my PC, 30 days later its deleted from my online backup!
I looked at crashplan only to read in the small print, they will only ship a HD with your data (for a price) to the USA. I'm UK.

You really need to read the small print with these things as its not a thing you want to change very often.

All input welcome.

I used Backblaze for a few months only to find out if i delete a folder from my PC, 30 days later its deleted from my online backup!

Backblaze is a backup solution for a particular machine (or machines; you pay them by the machine), not an archive. The other limitation they have is that they only back up directly attached storage - so external drives are included, but not network attached storage.

The pluses (I use Backblaze) are that it's a pretty cheap option and it's completely automatic.

I have an archive as well - every few months I update some external hard drives that live on a shelf in my office. I never delete anything from those.

Depending on the upload speed of your broadband, it can take weeks for the initial upload, but after that it's pretty smooth sailing.

So my 3-tier protect my data strategy is a LaCie RAID (it was Drobo, but I had all sorts of problems with reliability with the unit itself -  never lost a drive!), Backblaze, and external disks on a shelf (the third part used to be DVDs in a binder and at some point I'd like to transfer that to hard drives, but that will be very time consuming to do)

Do you backup all your raw image from shoots or just the selected images. Right now I have multiple backups of all my finished images - which are TIFFS and the converted JPGS, but I only have one copy of the shoots on portable hard drives because of the amount of data. 

As part of my multiple-tier backup strategy I use Arq for cloud backup. It's a nice piece of software (Mac only) and the developer seems very dedicated to improving it and providing support.

What it does is it creates backups on your choice of storage service: Amazon, Google, FTP -- it supports a number of destinations. My current backup strategy is hourly backups of my OSX user folder (most application data, downloads, desktop) to Amazon S3 and daily backups of my long-term storage (photos, videos, documents) to Amazon Glacier. I manually exclude data that doesn't need to be backed up or that already has a cloud mirror (Evernot, Dropbox).

A lifetime license of Arq cost me $60, my Amazon Web Services bill is less than $10 per month. Not much for peace of mind.

I use Crashplan, as there's no limitations on storage space so I just set it and forget it.  My household uses it, currently it's backing up one desktop and two laptops for the same price.  It's easy to pause or put the backups to sleep for a certain amount of time if eg you've just uploaded a bunch of photos from your camera and want to delete the crap first.

More importantly, as I found out when my desktop imploded (where all my photos are kept - on disks in a RAID 10 to be fair but the RAID failed also), it's really easy to restore from.

I use Mostphotos�
(For jpeg)