Around 22,000 people will arrive in Dublin over the next three days to attend the 2014 Web Summit.
It is expected to generate over 100 million euros for the Irish economy, according to figures from Failte Ireland.
It will bring together speakers including the founder of Paypal and the first investor in Facebook, Peter Thiel (pron Theel) the founder and CEO of Dropbox Drew Houston and actress and entrepreneur, Eva Longoria, among others.
Darragh Hickey, Co-founder of the Web Summit, outlines what it is all about:
