The Daily Grind: What's a good first MMO for a child?

Our Robin Torres writes a column called Gamer Interrupted, about mixing real life with gaming, and it's a wonderful read. In a recent post, the subject turned to how to make MMOs more child-friendly. A few specific titles were covered as well, including WoW and ToonTown Online, but it's worth asking if there are other good first MMO titles that are not only child-safe, but actively worthwhile for a kid to play, either alone or with a parent.

Obviously, we can mention Webkinz and Club Penguin, but are there others? Are there, in fact, any non-child MMOs that are safe for children to play?
This article was originally published on Massively.