The day is promoted by the Global Ideas Bank (GIB), an 'online democratic think-tank', and is taking place for the fifth time.
'By all means use the internet in advance to arrange real-world participatory events but then turn off the computer for the day,' reads the GIB website.
Director Nick Temple says: 'We will do a lot of press work for it on the internet.' But what will happen to the GIB site on 30 January? Temple tells us: 'At the very least there will be a sign on our site telling people to log off.'