Profits at the online retailer Amazon have dropped 73% after the company invested heavily in the Kindle tablet computer.
The company, the world's largest online internet retailer, said third quarter net income was $63m (£40m, 45m euros).
During the period it launched the Kindle "Fire" model, which runs apps and streams films and other non-text content.
The results left Amazon shares down 12% in after hours trading.
The company said that sales had grown by 44% and that last month, on 28 September, it had its "biggest order day ever for Kindle, even bigger than previous holiday peak days".
It now offers four Kindle devices, including a 3G model.
BBC News - Amazon profits dive after heavy Kindle investment
This is what happens when a company that sells books invests in a device that means you don't have to buy books anymore cause you can download them for free. Although if they didn't do it with Kindle someone else would do it.