My Interests Site proposes all to help other people.Here is the explanation of sence of this experiment
"......The first experiments title is Merry Christmas Mail Experiment.It's very simple and it's purpose is to help all us to donate joy to others.
Think,how many people need just one good word,a smile.I understand that many of them have no PC,but somebody has it.And so we can donate them our smile.Many of us can't donate money or gifts,but this gesture costs 0 for all who will partecipate,only our time and wish to help........."
Entire text you can read in Experiments-page
Pass this notice,partecipate,donate smile to other persons.