Have a look at this amazing organisation.
According to their website they are:
'(...) the only international organization supporting tribal peoples worldwide'.
Using methods of education, advocacy and campaigns, they work to help oppressed members of indigenous tribes all over the world. The issues range from tribes endangered by loss of land and homes, food as well as traditional lifestyle.
On their website you can find a great collection of news, videos and information on their fantastic campaings.
We would like to introduce it to you with this short film. 'Uncontacted Tribes', the story of over 100 tribes, who choose to reject contact with outsiders.
Here you can find more videos, pictures and films
Native tribes have a voice.
Survival International, the website.