Ecological footprint Calculator
With this ecological footprint you can estimate your footprint by selecting those options that most closely reflect your lifestyle.

This is the quickscan from Switserland available in German, French and Italian. Questions about your lifestyle will eventually lead to the number of globes needed for your way of consumption.

This site gives you de possibility to calculate the footprint of your electronic equipments. Plus information about how to reduce it, names and sites of companies that produce more sustainable and recycle their products

A Swiss website with two quizzes and some suggestions for teachers, for example to work on this subject together with another school.

This site gives a list of 266 projects from 32 European countries selected on quality.  This site, sustainablefootprint.org,  is mentioned in the list of the Netherlands.