Most researchers and the Census Bureau expect the U.S. population to hit the 300 million mark sometime in October. This will make the United States the world's third most populous nation--behind China and India. In this article, the author found several websites dealing with the specific 300 million target, population growth in general, and teaching about population. Several of the sites he reviewed, such as Population Connection (formerly Zero Population Growth), have very definite views on population, which he have tried to identify in the description. Furthermore, some of the sites that feature lesson plans and other teacher or student resources do not have anything specifically on the 300 million date, but he included them because the resources and lessons can be applied to the target date by teachers and students.