L'Etoile de Martin is an association created by friends of Jerome a Paris, one of the editors of the site, who have lost their young son, Martin to a brain tumor. The association (in which Mrs a Paris is actively involved) is trying to raise some funds for two purposes: (i) improve living conditions for children staying over at the hospitals where their (and the a Paris') son was treated, and (ii) fund a research grant on pediatric tumors.
The association raises fund through direct donations and by selling handmade jewellery, dummies and other decorative objects donated by friendly supporters. It is run by the parents of Martin.
For more information in English on the association, see here