Pierre Nachbaur Art suggests three main institutions in primitive art world:

The Musee du Quai Branly in Paris for the quality of the collection.
Link: www.quaibranly.fr

The Barbier-Mueller Museums in Geneva for the exceptional collection of Indonesian tribal art.
Link: www.barbier-mueller.ch

Tribal Art Magazine for up to date tribal art world news.
Link: www.tribalartmagazine.com

Macan Tidur Gallery in Ubud, Bali, the specialist of antique indonesian textile.
Link: www.macan-tidur-textiles.com