Business model

patent troll donation software as a service collective business model canvas free-to-play Pay to surf foundry model freemium early access pay what you can name your own price franchising product-service system microtransactions Lighting as a service multi-level marketing sale DVD-by-mail pyramid scheme Ponzi scheme multi-utility Customer development buy-to-play monetization Bricks and clicks subscription subscription crowd funding crowd funding direct-to-consumer research funding cooperative Community Choice Aggregation Copy to China Direct-to-consumer battle pass season pass Keyword advertising pay to play online advertising premium business model product placement convenience shop symbol group grant financial services pay what you want pay-per-view paywall razor-and-blades model