" Fab started in June 2011 in the USA with the mission to enable everyone to receive access to individual design and to get as many people as possible interested in design. Within only six months Fab.com received over two million members who let themselves be influenced and inspired by design. "
You can register and invite friends and earn cash to spend on great things.
There is also US, UK and EU site.
I know that this has nothing to do with books or learning languages and etc, but i like to share good things with you :-)
You can register here:
Thank you so much ! :D