Social networking + language learning is a really interesting concept
I love mixi. Nao (Ayumi's friend, not the one that stayed at our house) wrote a blog post about how there's been construction in the middle of the night near her house. Sounds like a pain, but it's good for me: I learned the word for "earplugs" (耳栓ーみみせんーmimisen. for those who were wondering).