WOT and Norton Safe Web use different basic approaches to site rating.
-WOT relies primarily on user input along with data from outside sources that compile lists of phishing sites, etc.
-Norton Safe Web actually visits each site and analyzes it for malicious content.; user opinions are weighed but are not the primary determinant of a site's safety rating.
Both methods have certain advantages and limitations, I for one really like WOT because it can warn me when a site isn't malicious but it's content isn't trustworthy. I have been using WOT for almost 2 years and for me it's the best site advisor on the market.
Related videos:
MyWot vs. McAfee Site Advisor vs. Norton Safe Web Lite Part 1
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MyWot vs. McAfee Site Advisor vs. Norton Safe Web Lite Part 2
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