Following moves to set up a sales office in London, uber social network Facebook is considering Ireland as the location for its European hub. Apparently executives from the company have met providers of business and technology services in Ireland in recent weeks, according to the Irish Times newspaper, whose subscription firewall prevents us from seeing much more on this story. However, a lot of large US tech companies locate themselves in Ireland not just for the fantastic people and cities on offer but also for the favourable tax regime.