  We developed a website for kids where they can share new as well as remixed
animations and games, e.g., interactive music videos, which they created on
their smartphones or tablets using a visual "LEGO-style" programming
environment called Catroid. Online communities for children like our website
have unique requirements, and keeping the commitment of kids on a high level is
a continuous challenge. For instance, one key motivator for kids is the ability
to entertain their friends. Another success factor is the ability to learn from
and cooperate with other children. In this short position paper we attempt at
identifying the requirements for the success of such an online community, both
from the point of view of the kids as well as of their parents, and at finding
ways to make it attractive for both.
