This issue of the Iowa Ag Review closes out the 15th volume of this quarterly publication. Over the last 15 years we have strived to present timely information and insight into the important issues that impact Iowa and U.S. agriculture. Aided by the explosive growth of the Internet and Google, the Iowa Ag Review truly has a worldwide audience. We regularly receive comments on our articles from as far away as Nepal and Australia, as well as from more nearby towns in Northwest Iowa.