wow, i would have to disagree; encouraging any use of google at all is counterproductive (for linux, and for users in general), except in the rare case when nothing else will do; google is the last resort, like a hammer; but, sometimes a nail really is a nail
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i was going to suggest 'startpage.com' as an alternative to google, as i believe they use the same results
or scroogle, iirc
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hmm, i really can't think of a reason to use google as a default search engine; perhaps they just want to use it because of android devices that require a google account, so it ties in to that;  occasionally i do use the google reverse image search when tineye gives me 0; also, sometimes duckduckgo is a bit weak, but i'd rather use yahoo or even bing first
... there is dogpile, and i remember metacrawler, which include google in their compiled results
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ok, i'd have to say that you should do a meta-meta-search gateway, including also google, just to be fair, and offering the selection of 'primary' search engine results, which would weigh that one source above others, and offer relevant links like gmail, googleplus, etc, or yahoo, yahoo plus, or whatever, or bing, bing plus, lol
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that would make me proud
hope it helps
(*cough* *google* *cough* *goo-glee* *blech*)