Busuu is a 'language learning community' or social network for language learners. You will be invited to act as both user and tutor in conversing via chat-windows or webcam. You can join for free and have access to a good bit (vocab, reading and writing exercises and interactive testing of your level) . A paying Premium membership gives you more audio and video resources for more intensive and quicker learning. A variety of languages are available and you can choose as many as you like. A fun way to try out new languages and develop a basic level. By the way, Busuu is (was?) an endangered language spoken in Cameroon. 

The Busuu apps for iPads or iPhones are also worth a try for learning on the go. The more common school languages are not free but this is your chance to try out Polish, Japanese, Mandarin or Portugese at no cost, just time... Read more