Any online site needs to incorporate recommendations.

Recommendations on products, content, people. On just about everything.

Recommendations are a barometer of trust. The Global Trust in Advertising survey released this month says that the majority of digital users, trust lies first and foremost in recommendations and opinions from their peers. As for the bulk of formats found on web sites or on mobile (such as various flavors of display advertising), they fall to the bottom of the chart. Nielsen’s study, based on 26,000 respondents in 56 countries, was conducted in Q3 2011.