Ginger Booth is a mathematician turned programmer with a career in environmental science and engineering. A lifelong gardener, she tried hydroponic lettuce in her kitchen in 2007, and fell in love. Eager to share experiments, she leapt onto the Internet, but found too few people talking. So she set up as an online Dear Abby of indoor gardening to egg people on, and learn from the experience of thousands. Ginger has a condo in shoreline Connecticut, with crops spilling out onto the balconies and down the driveway. Reach her at indoorsalad.com or aerogardenmastery.com.