Google -- market disruptor or destroyer

Is Google a source of creative destruction--or just plain destruction? Google is steadily implementing a strategy, across many markets, of building services that sit right in front of the user and that act as gateways between the user and other online services. Google makes money from traffic to these gateway sites, as well as, oftentimes, from the sites it directs traffic to. And Google ends up controlling the game. How do other companies make money and build loyalty among consumers when their services become commodities, access to which is doled out by Google? Their business models are getting destroyed--perhaps deservedly so, though not always. Some new companies are figuring out how to work in a world where they have limited direct access to the consumer and very little brand loyalty. But companies with older models to protect are having a hard time adjusting.