I think this question is much more interesting regarding WolframAlpha than a normal search engine. A search engine listing is just a directory of links (although Google and friends are adding new capabilities constantly) where a WolframAlpha result is a curated, rewritten summary of the content in question.

Right now, WolframAlpha is one of the nearest things we have to the "advanced Artificial Intelligence" from the article; in a certain sense, it actually does create new content. Should this have speech protections? From an ideological point of view, I think it should, but I am sure about its legal status. A question I'm not even sure about ideologically is copyright--how much copyright protection do you give to things like WolframAlpha's result pages?

Either way, the most important point is that the future where computers produce novel and useful content is not the future at all--it's now.