Business Bites: How can Facebook buoy itself up on the stock market?

Social networking giant Facebook has posted a loss of $157m in its first earnings report since its $100bn flotation on the stock market.

Facebook stock is now also trading some 37% below its listing price.

It is thought the loss is mainly due to one-off expenses associated with its stock market launch, but investors are now worrying about slowing revenue growth.

The big issue for the company to overcome is how to generate revenue from people accessing its services via mobile phones.

Meanwhile embattled bank Barclays has announced it made $6.6bn in the six months to June - a 13% jump on the same period last year.

The BBC's Aaron Heslehurst discusses the key financial stories of the day.