Children pose for the camera while begging for alms at a railway station in India. Sumanth Garakarajula/Flickr. (CC 2.0 by) Economic activity is fundamental to the lives of children on the streets.

James Okina, founder of Street Priests, with kids who need help. James Okina. For many children who have been abandoned, abused or neglected, the streets become their refuge.

In her new book "All God's Children," Rene Denfeld looks inside the world of "street... Brutal, rigid society for kids living on street SF Gate Logo Hearst Newspapers Logo ...

Street kids playing in Ahmedabad. Image from Flickr by Sandeep Chetan. CC BY-NC-ND 2.0. A Delhi-based newspaper written and published by street children has been telling their stories in their voices ...

And the group has had success raising money via Facebook solicitations, sharing stories about street children, and by staging special events. "We raised 136,000 naira [$446] ...