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Facebook is building a new €200 million data centre in Clonee in Co Meath.
2,000 construction jobs will be created and it is expected around 150 longer-term jobs will be announced once the centre is operational. That is expected to happen by the start of 2018, at the latest.
Facebook founder Mark Zuckerberg says it will be one of the most advanced and energy efficient data centres in the world.
It is the company's second European data center, after Luleå in Sweden.
Mr Zuckerberg says Facebook is glad to be investing further in Ireland and in the community in Clonee.
Asian markets remained calm overnight, the Nikkei 225 index in Japan rose by 0.3%
This followed improved trading on Friday which saw the index rise by almost 6%.
Markets in China, Australia and South Korea are all up this morning after central bankers in Europe and Japan indicated last week that they will consider taking new actions to stimulate economic activity.
Meanwhile, the price of oil has risen to above $32 per barrel.
Google will pay less taxes in Ireland on profits from its British business after the company settled a tax audit in the UK.
The firm will pay over €171 million in back taxes to British authorities.
Google will not make any changes to its corporate structure, but The Irish Times reports that the company will alter how it calculates its UK tax liability - and that this will result in more taxes being paid in the UK and less to the Irish exchequer.
Until now a significant portion of the tax liability from the company’s sales in the UK has been paid by the Irish operation.
London to Dublin has been named the second busiest air route in the world.
Almost 4.5 million people flew between the two capitals last year.
This was a 9% increase on the previous year.
The world’s busiest route is between Hong Kong and Taipei.