Word-of-mouth advertising via social media is one of the most effective ways SXSW advertises its events to potential attendees. What is this an example of in terms of ebusiness advantages?

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.

answer; knowledge,reason,and judgement;

answer; participant observation method;