The Sherpa reference article from the English Wikipedia on 24-Apr-2004
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Sherpa

Sponsorship the way you would do it
A sherpa is one of the mountain people of Nepal. By extension, the name can also apply to a guide or porter hired for climbing expeditions in the Himalayas.
By extension, sherpa is the name given to the personal representatives of heads of state and government within the G8 process: the metaphor is that the "sherpa" prepares the way toward the "summit". One or more "sherpa meetings" are generally held in preparation for summits.