>>web-scale word-of-mouth(social networks, product review sites, recommendations from field- or topic-specific authoritative websites) All of which are ad-supp

>>web-scale word-of-mouth(social networks, product review sites, recommendations from field- or topic-specific authoritative websites) All of which are ad-supported and if they were fee-based they wouldn't be that massive, which agian brings back to ads. >> Relying on ad revenue is a moral failing. If relying on ad revenue is a moral failing, so is using such a product/service. Have never used a such product/service?