It really worries me that whenever Google rolls out a feature within their search results, it destroys a business. For example, earlier currency conversion and dictionary word meanings required using third party sites. Now it can be done directly via their search. I no longer visit the old sites. Now with this, I will be less likely to visit etymonline.com. Quite similar to how including IE by default in Windows lead to lawsuits of unfair competition/monopoly. Is it wrong to believe something similar may happen with Google search.