The website "Earthlearningidea" was developed for the International Year of Planet Earth in 2007 and continues with one new activity per fortnight. Activities are devised to catch the attention of students and to enable them to enjoy the science of the Earth. Many activities require minimal equipment, for schools in developing countries, but there is plenty to enhance the teaching of topics such as plate tectonics where some apparatus is needed. An example of a complete activity illustrates the format. The latest uptake across the world is reviewed, including translations into eight languages. Readers are encouraged to take part themselves. (Contains 5 figures and 7 online resources.)