Marketing on websites can be complicated but some advertising platforms are making it easier by simply measuring what each side provides. For example, an online retailer might pay for leads or revenue that comes from the publishers’ sites. It's a type of shared value, where people are rewarded for sharing their skills. Partnering with affiliates allows you to extend your advertising reach and increase your relevance with target audiences for a limited investment. The bloggers promoting your brand can be great partners by only “paying for performance."