It is funding month - ToS;DR needs your support!

Every half-year is funding month. Money is the biggest danger ToS;DR faces today. Volunteers at ToS;DR are mostly covering costs out of their own pocket. With increased electricity and maintenance costs, we need your support to keep ToS;DR active and alive! Even One dollar helps to keep ToS;DR running!

Donate with OpenCollective


Khan Academy

Clase D

Insignias de Privacidad integradas

Utiliza los códigos de abajo para integrar una insignia de privacidad a un blog, tu página web, ¡o donde quieras!