We only had a short time in Cambodia but wished we could have stayed longer. We visited Phnom Penh and Siem Reap.
Read here for more info about Phnom Penh with Kids.
This post includes many of the Social Enterprises and Non-Profits we visited in Cambodia as well as other countries.
For tour options we regularly use Get Your Guide, this affiliate link is for Siem Reap but they have tours and activities available in locations around the world.