How big is your ripple of happiness?

It doesn’t take a lot of money or time to make someone’s day.  Smiling at a stranger can be contagious.  Paying the toll fee for the car behind you may inspire them to pay it forward.  Picking up a $207 grocery bill at Trader Joe’s can turn into $23,000 in donations for the local food bank.

These heartwarming stories inspired us to launch Yahoo!’s “You In?” campaign this holiday season because we believe that one small act of kindness can create a ripple of generosity.

Help Yahoo! create a ripple of happiness around the world with random acts of kindness.  Update your online status (on Yahoo!, Facebook, MySpace and Twitter) to share what you’re doing to spread holiday joy at kindness.yahoo.com. Then encourage others to join you by asking “You in?”.  Yahoo! will use our network to share your good deeds with our community. We’ll also be doing our own acts of kindness inspired by your status updates.  Whether your act of kindness is buying someone’s groceries or getting warm coats to people in need, your actions will encourage others around the world to join in.

It’s your world. And it is what you make it.

How big will your ripple of happiness be?

You in?