Professional social network LinkedIn has reported a 72% rise in its revenue to $324.7m for the first quarter of 2013, compared to $188.5m for the same period in 2012.

Net income of the company increased to $22.6m, or $0.20 diluted earnings per share, for the quarter, compared to $5m, or $0.04 diluted earnings per share, for the same period last year.

Revenue from the US was $201.4m in the quarter while revenue from international markets was $123.3m.

LinkedIn’s marketing and talent solutions alone brought it $259.1m of its revenue.

Field sales channel generated revenue of $184m in Q1 and revenue from the online, direct sales channel totalled $140.7m.

The company said its member base grew to 218 million and had member growth through the quarter due to optimisation initiatives.

LinkedIn CFO Steve Sordello said: "Our continued focus on our operating priorities yielded strong results in the first quarter, resulting in record levels of revenue, profitability, and cash flow.

"We remain encouraged by the diversity of our business and size of our market opportunities, and we will continue to invest aggressively to realise LinkedIn’s long-term potential," Sordello said.

The company expects to post revenue in the range of $342m and $347m for the second quarter of this year.

Last month, LinkedIn agreed to acquire the news reader and mobile content distribution platform, Pulse.