It’s not hard to see why our readers loved this thought-provoking expose of America’s long history with mind-altering substances. In fact, the ad for Cocaine Toothache Drops (contemporarily priced at 15 cents) alone is worth a trip to this colorful and well curated site. Lesson plans and online activities help educators illustrate how the United States has handled the thin and shifting line...

This striking new exhibition from the American Museum of Natural History explores the cultural, historical, and biological powers of poison. Designed to complement an in situ exhibit, visitors can learn about poison in nature, myth, and legend. A video introduction to the exhibit is a great place to start and visitors can also meet the curator, Dr. Mark Siddall. In the Poison in Nature area, users...