It's a search engine though, so I think this case they are much more similar to an ISP than a media company. They're not creating the content, so I don't understand why they deserve 'free speech'. They should just display the search results, similar to how under the principles of net neutrality the ISPs should just deliver the bits. If there's no compelling business interest for them to be filtering out results other than ideology, then there should be legislation to prevent that filtering. And for the record, I give absolutely not one damn about the "rights" of corporations - they're just as corrupt and slimy as the government, and have vastly more power in practical terms.