Palabea:A language learning network that provides video, audio and writing opportunities to learn a new language.
LiveMocha: A language learning community, complete with games and interesting exercises.
BBC Languages: The BBC provides free audio and video languages courses, as well as cultural tips and stories.
Internet Polyglot: Polyglot is a games and exercise-oriented site that uses fun tools to help language retention.
12 Essential Phrases in 36 languages
Busuu: A language learning community