Amazon Glacier: Archival Storage…: Amazon is introducing Glacier, which allows you to move infrequently-accessed business archives to the cloud for ridiculously low amounts of money.
Glacier provides – at a cost as low as $0.01 (one US penny, one one-hundredth of a dollar) per Gigabyte, per month – extremely low cost archive storage.
So, one terabyte of data storage is $10 per month.
Here’s the catch: you can only request access to 5% of the amount you store for free. You have to pay if you go over that. Additionally, retrieval requests are called “jobs,” which is to prepare you for the fact that they take 3-5 hours before your data is available for 24 hours.
Obviously, this is for a specific use case, but seems well-suited to organizations with a ton of tapes sitting around.