Amazon have announced today that they’ll be supporting digital sales for a selection of 100 PS3 and PS4 games, transforming into another PSN of sorts.
The retailer has been running a digital market for PC games for a while, and it seems like this is essentially the same system.
You can use either Amazon cards or just a general credit card to make purchases, which then gifts a digital key to your Amazon account. That key can then be used on your PS3 (Or PS4 in the future).
Unfortunately, the digital offer is only available to US addresses for the time being, with no news on when it will expand to other countries.