This hackpad (a collaborative list composed by 150 people) has an impressive list of web and mobile revenue models, ranging from the classic ad-driven models and pay-per-download to intermediaries and commerce models.
For Your Inspiration.

List of web & mobile revenue models:

1. Advertising
2. Commerce
3. Subscription
4. Peer to Peer
5. Transaction processing
6. Licensing
7. Data
8. Mobile
9. Gaming
10. Revenue-share
11. Other
12. Savings-Share/Better Marketplace Models (dividing up savings or capture value from intermediary via some sort of fee)
13. Talent Authenticity/Talent Elevation Platforms(rewarding talent through mutually beneficial transactions)
14. Excess Capacity (enabling better capacity utilization for extra revenue)

If you are interested in learning more, check out 11 revenue models that bring in more cash.