Going to Europe for the First Time!

i'll be traveling to Europe in two days for the very first time! 
here is the itinerary. if you know anyone who lives in these cities and could possibly have a place for 3 dudes to sleep that would be awesome!

Paris Aug 29th - Sept 1
Amsterdam Sept 1-3
Berlin 3-5
Prague 5-7
Vienna 7-8
Venice 8-9
Rome 9-12
London 12-15
Paris 15 - Leave Sept 16 back to 'Merica.