http://www.washingtonpost.com/wp-dyn/content/article/2006/10/21/AR2006102100936_pf.html
From her home surrounded by cornfields in Dow City, Iowa, Jackie Park spends hours each day on her computer, earning half a penny every time she clicks on an Internet advertisement.
By the end of the day, she usually tallies a few hundred clicks, yielding about $300 a year. It's not much, but it adds up for the 35-year-old mother of five who became disabled three years ago.