The won the New to the Net award at the sixth annual Cable & Wireless Childnet Awards. The Iearn project from Sierra Leone aims to encourage children who have been caught up in conflict, to share their experiences and a desire for peace.
The site, which carries pictures by the children about their experiences, allows former child soldiers to talk about what they have been through in writings, drawing or music, as well as exchange emails with other teens from around the world.
The site was set up by non-profit group International Education and Resource Network in Sierra Leone.
The former British colony Sierra Leone is recovering from a 10-year bloody civil war, which was eventually brought to an end by the intervention of British troops and United Nations peacekeepers.
It is estimated that during the war as many as 5,000 children were pressganged into taking up arms.
Andrew Greene, national coordinator of the site, said: "It is cathartic. It gives them a feeling of redress from the war years and these children are the future leaders of tomorrow.
"Through the sharing of ideas with their peers across the world, they feel they are not alone any more."
After some struggle, the charity got the website off the ground with the help of a UK charity, which donated recycled computers.
Other prizes at the awards went to Great Ormond Street's which won the Not for Profit category. The Great Ormond Street project was described by the independent panel of judges as "an outstanding example of how a hospital can create quality, authoritative information on issues relating to health in a fun, child-centred and accessible way".
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