It all started with The Hunger Site and it seems there are more and more of those sites where you just have to click to help end world hunger or do some other good deed. FreeRice is another one of those but it adds an interesting twist: your clicks are based on a vocabulary game and they only count if you get the meaning of the words right. For every 3 correct answers, your vocab level goes up one and for every mistake it goes down one. The higher the level, the more difficult are the words you are given. The game is dead simple but very, very addictive and is also a great way to improve your vocabulary. So give it a go and see what level you can reach: the maximum is 50 and they reckon very few people go past 48.