Virtual Globe software has become extremely popular both inside and outside of educational settings. This software allows users to explore the Earth in three dimensions while streaming satellite imagery, elevation, and other data from the Internet. Virtual Globes, such as Google Earth, NASA World Wind, and ESRI's ArcGIS Explorer can be effectively used in standards-based, inquiry-driven geography lessons. With some practice, mashups (using data from more than one source to create new data) can be constructed for practically any application or area of interest. Educators who have not already begun to use these tools may wish to investigate them to help their students to think spatially by investigating processes and places on the Earth's surface in a three-dimensional visualization environment. (Contains 4 figures.)