Yeah. Not so good in taste. But I assure you, it is very very very good to your health :) Soymilk is not technically milk, but a beverage made from soybeans. It is the liquid that remains after soybeans are soaked, finely ground, and then strained. Since it doesn't contain any lactose, soymilk is suitable for lactose intolerant folks.
Soymilk may help some people reduce their risk for heart disease. Soy naturally contains isoflavones, plant chemicals that help lower LDL ("bad" cholesterol) if taken as part of a "heart healthy" eating plan.