Biographies of Beatrix Potter include Beatrix Potter: A Life in Nature, by Linda Lear (St. Martin's Griffin, 2008) and Beatrix Potter: Artist, Storyteller, and Countrywoman by Judy Taylor (New York: F. Warne, 1996).
A Wikipedia article about the English Lake Country where Beatrix Potter had her farm includes pictures. An article about Hill Top, the farm she lived on and donated to the National Trust, includes pictures of the farmhouse itself. Bowness-on-Windermere in Cumbria, England, boasts a themed attraction dedicated to Beatrix Potter.
Ecosystems and Ecology
The U.S. Environmental Protection Agency has an excellent Environmental Kids Club with environmental information and games for children.
Fans of Dr. Seuss's environmental children's book The Lorax will enjoy a Lorax Save the Trees game.
On the BBC website, find interactive games for elementary school-age children that explore interconnections in the natural environment and other science, health, and ecology topics.