Business network LinkedIn is reportedly planning to open its platform to developers over the next nine months.
The concern for LinkedIn is that professional networkers are increasingly using Facebook, which also recently opened up to widget developers.
LinkedIn, which recently raised £6.5m in funding for European expansion, has around 11m members.
Earlier this year, Xing acquired Spain's second biggest business network eConozco. These two deals now make Xing the market leader in the Spanish speaking world.