Write for Rights by Amnesty International: letters and petitions for human rights
People in more than 200 countries and territories can take part, with no age limits stated on the page, and there are toolkits for schools and activists. Participants sign petitions for featured cases, write letters (template letters and case cards can be downloaded) or send emails and social media messages. The page gives no dates for the 2026 campaign and no price.
Volunteering Online