Related Clues:
- Campaign buys
- App pop-ups
- Freemium game breaks, often
- Main source of online revenue
- Website annoyances
- 30-second spots, perhaps
- Some include coupons
- Commercials and billboards
- Block during a show
- Pop-ups and such
- Commercials, e.g
- In-app interruptions
- Jaguar spots, e.g.?
- Free-app interrupters
- Spots for sale