Comparison of Major Search Engines Ranks Their Safety
The Safety of Internet Search Engines (Google, Yahoo, MSN, AOL, Ask), May 12, 2006, by Ben Edelman and Hannah Rosenbaum.
“Abstract: We compare safety of leading search engines, using SiteAdvisor’s automated Web site ratings. We find most leading search engines similar in the safety of the sites they link to, though MSN is the safest and Ask lags noticeably behind. Across search engines, we find sponsored results significantly less safe than search engines’ organic results.”