Being a parent myself, I would have to say that Parenting wins the “Most Demanding Job on the Planet” prize hands down. There are a zillion resources out there. Here are some of my favorites:
Bailey, Elizabeth Easy to Love, Difficult to Discipline
Brook, Carlene Bringing Baby Home
Kids Help Phone
While this service is currently only available in Canada, the site itself has some really helpful games and information for children to work with feelings and concerns they may be experiencing. There is a section for Kids 8-12, and Teens 13-20.
Natural Child Project