Recently, we have been watching the rise of massive collective action across the world. During a series of demonstrations in Cairo’s Tahrir Square and Occupy Movements in the world, the powerful combination of internet space and real space has been revealed. Manuel Castells insists that internet technology impacts on the spread of the collective action in urban areas and ‘Hybrid space’ which is a strong interaction between the internet space and public space leads to social and political changes. This study will review how the internet technology links to the collective action and how the collective action impacts on changes of the public space and urban policies.