The principle is simple: collect credits by visiting other members' sites, then redeem those credits for visitors to your own page. Three ways to collect credits: • Classic surfing — one credit per page you view • Watch advertising — bonus credits for video ads and banners • Referral bonuses — credits up front plus ongoing earnings Three ways to spend them: • Standard hits — one credit equals one real visitor • Premium hits — targeted by geo, language, or interest • Banner impressions — run your own display banners Pro tip: run on Standard during testing and optimize conversion before switching to Premium.