Fast growing demand from mobile advertisers had a big hand in pushing revenue and profit at Facebook, providing further evidence that the social network’s mobile strategy is paying off.

The company had 819 million mobile users who are active every month, a 51 per cent increase year-on-year, according to its Q2 2013 results.

Overall, Facebook reported revenue of $1.81 billion, a substantial increase from the $1.18 billion in the same quarter last year. Net income on a GAAP basis was $333 million, compared to a loss of $157 million in Q2 2012.

A number of statistics reported by the company signalled the growing importance of its mobile business. Particularly striking was that mobile advertising accounted for about 41 per cent of total advertising revenue in Q2, up from 30 per cent in Q1.

The number of mobile users who were active on the social network every day hit 469 million on average in June 2013, according to the results.

“Nearly half a billion people use Facebook on their phones everyday and soon we’ll have more revenue on mobile than on desktop as well,” said CEO Mark Zuckerberg.

The total number of Facebook users was 1.15 billion, compared with 1.11 billion in the first quarter of 2013.

The company also said Instagram saw five million videos uploaded in the first 24 hours after the photo-sharing app recently added a video service.