PBS
Pbs: Journey to Planet Earth: Seas of Grass
A part of the PBS series "Journey to Planet Earth," this section explores the world's grasslands, some of which are in environmental danger. Includes video and educational resources.
Encyclopedia of Earth
Encyclopedia of Earth: Terrestrial Biome
Gives short descriptions of the many different types of biomes found on land all over the world. (Updated: February 22, 2013)
PBS
Nh Pbs: Nature Works: Terrestrial Communities
Explore land ecosystems around Earth. Learn about forests, tundra, taiga, grasslands, and deserts.