There are increasing concerns about businesses relying on third parties for services that start out harmlessly, get the reputation for being vital (self-selecting self-promoting self-fulfilling), then change the rules and harm the business. It's the cliche of drug addiction but nevertheless, terms of service, quality of service, and so forth have not been suspended to make Internet wealth possible. Social networks, Twittering, etc., may be the next big bust except for the data mining services. They are fun but vital for business?
I'm not sure when, but somewhere in the next four years, the problems of the self-enamored web punditocracy that grabs any morsel of information from the middle of the long tail, pushes it to the top, then amplifies it as 'newly discovered facts' across the web will come front and center. Not only will overhyped technologies begin to evaporate, but the reputations of the names of those pundits will as well. Then 'cloud' will have meaning; it may become synonymous with 'foolish'.
Jimmy the Greek was a terrible handicapper. He was a great self-promoter. Then he made one prediction too many.