Web Of Trust - Website Trust Ratings from Other Internet Users | ICT Security-Sécurité PC et Internet | Scoop.it
WOT relies on a "crowdsourced" model of information gathering. What that means is that registered WOT members provide ratings of websites based on four criteria: Trustworthiness, Vendor reliability, Privacy and Child Safety. Members rate sites that they actually visit and interact with.

Much like a rating system that you might find in an online store or other votable venue, sites accumulate a reputation based on how people vote.

Those ratings are then made available to anyone.