''The Billionaire Circuit'' - or ''...events where elite through leaders gather to share ideas''. 1) World Economic Forum, Davos; 2) SXSW, Austin; 3) TED, Vancouver; 4) Allen & Company Sun Valley Conference, Sun Valley, Idaho; 5) Aspen Ideas Festival, Aspen, Colorado; 6) David Geffen's yacht ''Rising Sun''; 7) Google Camp, Sicily; 8) Summit Series, Eden, Utah. Story by Ainsley Harris.