Former pro player Tumeka Harris (who seems to have given up tennis and become a fulltime model), younger sister of Briana Harris, has authored a series of children's books called BigHeds. There's an excellent interview with Tumeka at the website of another industrious young player, Jennifer Magley. http://www.jennifermagley.com
Jennifer has started a line of gifts for couples who break up, (called 18 dozen, or something). So she's making some $ on the side, while embarking on her full-time pro career in 2007.
Nice to see a couple of young players who aren't putting all their eggs in the "I'm going to be a tennis star" basket.