A French non-profit association, whose aim is to introduce the world's cultures to young people via pen-friends who are the same age, in the countries of your choice.

The largest and fastest growing K-12 online community for meaningful learning. Over half a million educators and millions of learners across 200 countries and territories safely connect, collaborate and build community

Web-based mail system especially for girls 7-17 who want to exchange e-letters with penpals in a safe environment. You can have penpals from all over the world without giving out any personal information.