A number of the environmental and social activists who helped sink the World Trade Organization meeting in Seattle last month are now heading to the ski resort town of Davos, Switzerland, to protest a meeting that starts tomorrow of the World Economic Forum, an elite group that includes representatives from 1,000 of the world’s largest corporations. Some demonstrators will take to the streets, decrying the meeting as another case of insiders retreating from public view to make economic decisions on everything from labor standards to genetically modified foods. A few activists, like Friends of the Earth Pres. Brent Blackwelder, have been invited inside to present views that depart from the standard corporate orthodoxy.