Do this after you collect your properties (only works 1 post from 1 city properties for 24 hours)
Share property collection boost:
VEGAS:
1) Unframe Mafia Wars
2) Go to your Casino in Las Vegas
3) Paste this into your address bar:
javascript:(function(){shareCollectItem(5);})()
ITALY:
1) Unframe Mafia Wars
2) Go to your Village in Italy
3) Paste this into your address bar:
javascript:(function(){shareCollectItem(6);})()
Result is random Boost post :)