PatientsLikeMe.com
- Patients expose on the web their medical experiences.
- The business is sold to pharmaceutical companies and other ones interested in patients opinions.
Flattr
- Grants for projects and contents.
- Flattr gets 10%.
Groupon.com
- Exclusive offers for a limited time.
- Groupon suppliers ensures a minimum of users for each offer. It is 50% of the generated.
Spotify.com
- Free Music.
- They have two options:
- A free subscription supported by advertising.
- A subscription payment.
- Users pay for the products promoting with their Twitter accounts.
- They get to be known and may be sold in the future.
HumbleBundle.com
- Users choose how much money they make. We come together with charity.
- Promotion.
Free with in-app sales.
- Application is available for free.
- Within the application is paid optional content.
Quirky.com
- Artists can upload their products to $ 99 for other contributors to improve it.
- Quirky distributes the money among the contributors.
Airbnb.com
- Allows anyone to rent rooms to anyone.
- 12% commission.
Kickstarter.com
- It is a social finance system. Crowdfounding
- Takes 5%.
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