Would you shop online using Facebook?
Facebook is piloting a payment system that lets users make purchases using just their log-in.
People who buy games or gifts on the site and register their credit cards will soon be able to buy products without having to re-enter their details.
If successful, it could rival Pay-Pal as a the web's preferred online payment system. But Mike Isaac, editor of technology magazine All Things D, is sceptical of the plans.
He told BBC Radio 5 live's Up All Night: "Facebook is as secure as any internet company, but... to trust it with a credit card? I don't think everyone is quite convinced of that yet."
- From the section Technology