This unique social sharing site is an excellent example of the power of people, but it's definitely not for kids. In its completely open environment groups have formed, campaigned, and raised significant amounts of money for positive change. Subreddits connect users with common interests while moderators keep things on topic and stick to clearly posted rules. The drawback on Reddit is the same as it is for the entire Internet -- there’s just no telling what people will put out there. Links, comments, and entire subreddits may expose kids to biased, offensive, or sexual content. Reddit’s best audience is a grown-up one.