Where have the promise of unlimited storage for free gone? I guess only Facebook offers you to store as many pictures as you will throw at it. But retrieval mig

Where have the promise of unlimited storage for free gone? I guess only Facebook offers you to store as many pictures as you will throw at it. But retrieval might not be easy. Snark aside, I am not sure they can be blamed for trying to survive. After all those costs add up, and without a profitable ads business behind, it's unclear how Flickr could survive otherwise. Are there any other popular businesses which currently offers a significant amount of media storage in a free account?