From the Learn10 'About Us' page: "Learn10 was built to help people create a daily learning habit. The ethos is simple - once you become a member of Learn10 you’ll automatically be sent short, daily learning tasks - such as 10 new words in a foreign language. We use the range of current web technology so you’ll see your content on Facebook, Twitter, in your email, it’s RSSable, can be plugged in to any blog or web page, it’s iPhone friendly and mostly free.