Straight up competition - a marketing company built on search or ecommerce for everything - probably wouldn't. The company that takes them down will come from a

Straight up competition - a marketing company built on search or ecommerce for everything - probably wouldn't. The company that takes them down will come from a side angle and might not even be recognized as a competitor. Amazon itself is an example of this. It wasn't too terribly long ago that Walmart ruled retail and Amazon was a niche little company selling books (online!). Whatever takes down Google and Amazon will be something similar.