Blekko 's search engine is a $ 24 million venture - backed project . The engine is designed to remove spam search results . Blekko tells us that 11 percent of its existing user base come back to the site on a weekly basis . Most significant change to Google 's search engine is the addition of slashtags .
Blekko 's search engine is a $ 24 million venture - backed project . The engine is designed to remove spam search results . Most significant change to Google 's search engine is the addition of slashtags .