VERY Safe for Children. Quite fun, actually. It is owned by Pearson Education and is created by Jeff Kinney, the creator of the "Diary of a Wimpy Kid" series (and the series' first book has been turned into a movie). At the time of writing, you can only communicate with other people using preset phrases, and I hope it stays that way. This site is completely free and has a members option (and a credits option) which gives you the following advantages and disadvantages over credits and non-members:
1. Unlocks every single item in the Poptropica store
(See Disadvantage No. 1)
2. Allows you to access new islands before non-members
3. Very cheap (only 2.99 for one month, and for everything else less than HALF the price of most other online games)
1. Once you cancel your membership, you will lose any items you unlocked using membership. However, any items that you bought using credits that you either bought or earned will be kept.
2. Cost money (see advantage No.3)