PikiFriends is Great For ESL Students

PikiFriends is an "online 'penpal' program made for junior and senior high school students and teachers only. Member students and teachers manage their own personal profiles and communicate with each other in a variety of ways using English. The main goal of PikiFriends is to improve English communication skills among EFL students".  PikiFriends provides a safe, filtered environment and teachers have a lot of control over the student accounts.