A Big Wet Kiss for Mother Earth

Some sites that popped-up around Earth Day:

Google Earth releases two .kmz files with lessons on climate change and the environment.

The SeXI-FS simulator examines relationship between trees in a mixed-species forest. Cooler than it sounds. Via Download Squad.

Over 400 nature and wildlife sounds from the British Library.

From Boing Boing - video from a bear's point of view.