http://www.freerice.com
a fun English vocabulary test aiming to help those suffering from poverty.They raise money from the advertisers so  the more click the more help I don't know much about the site but as far as understood it is a charity organization more info is available on the sites FAQ section.


here what they say in "About"
About FreeRice

FreeRice is a sister site of the world poverty site, Poverty.com.

FreeRice has two goals:

   1. Provide English vocabulary to everyone for free.
   2. Help end world hunger by providing rice to hungry people for free.

This is made possible by the sponsors who advertise on this site.

Whether you are CEO of a large corporation or a street child in a poor country, improving your vocabulary can improve your life. It is a great investment in yourself.

Perhaps even greater is the investment your donated rice makes in hungry human beings, enabling them to function and be productive. Somewhere in the world, a person is eating rice that you helped provide. Thank you.

I play this regularly. I keep a link on my desktop for when I have a bit of spare time along with the following link which you click on daily to provide money for cancer research, poverty, literacy etc.
http://www.thebreastcancersite.com/clickToGive/home.faces?siteId=2

thanks for this.  I played and donated a few hundred grains (and bookmarked on my toolbar so that I can each day).  But I showed my wife and kids.  She has passed it onto the teaching forums that she is on.  My kids are up to about 5000 grains of rice in the last hour or so.  we are getting a lot of what does mean
I think half their school will be doing during the week too

Phil