Tropical Forests of Puerto Rico
- Comprehensive look at the various types meant for students.
- http://www.fs.fed.us/global/lzone/student/tropical.htm

Caribbean National Forest, El Yunque
- Mountain that dominates the 28,000 acre tropical forest, located in the rugged Sierra de Luquillo, 40 km southeast of San Juan.
- http://welcome.topuertorico.org/reference/yunque.shtml

Sol Boricua: the El Yunque Rainforest
- For the Taino indians, the Luquillo Mountain Range was a sacred place. The word "Yuke" means white lands in reference to the mountain tops which are usually covered by clouds.
- http://www.solboricua.com/elyunque/

El Yunque Rainforest in Puerto Rico
- Information includes the endangered Puerto Rican Parrots, bats, coquis and other species.
- http://hechoenpuertorico.org/yunque/

El Yunque Rainforest
- Description of the various types of forests and photos.
- http://www.elyunque.com/about.html

Puerto Rico Journey: El Yunque
- Professor Peter Johnson and his students took these pictures on a trip to PR. Map, photos, directions and a nice description of the rainforest.
- http://www.iit.edu/~PR/elyunque.html