Twitter to open European HQ in Dublin

Microblogging service Twitter has announced its third international office to be founded outside the confines of Silicon Valley, and it's chosen a location which is proving popular among tech companies: Dublin.

In addition to Twitter's new European headquarters, Dublin is home to some major players in the cloud computing business - including both Amazon and Microsoft, who found their servers offline recently following a lightning strike in the city.

While server farm operators wax lyrical about the location's climate - which, being cool and with ready access to a river, is great for running high-density computing hardware without costly air conditioning bills - there's another very good reason it's becoming something of a Silicon Shamrock: tax.

Unlike England, which charges a pretty impressive 28 per cent 'corporation tax' on businesses operating within its borders, a corporation operating out of Dublin enjoys a reduced rate of just 12 per cent.

The result is an immediate 16 per cent boost to a company's bottom line - and with Dublin enjoying high-bandwidth connections to the rest of Europe, there's no real disadvantage to setting up shop on the banks of the Liffey.

Twitter, for its part, has denied that the move is about tax, claiming that a move to Dublin is simply "the great next step in our global expansion," but responses to the company's announcement on the service itself seem clear: Twitter is looking for tax breaks, and will go anywhere it can to reduce its bills.