Revenue - The amount of money a business receives before expenses

Revenue Stream - Individual methods by which money comes into a company

Subscription - An ongoing fee for access to a service (gym membership, computer games with online access)

Advertising/Sponsorship - money brought in for including advertisements through the business (Web banners, advertisement at a sporting event)

Transaction/Usage Fee - Fees for using the business' services (fees at hotels, ATM fees)

Licensing and franchises - money brought in by allowing others to run new branches for your business.

Lending/Renting/Leasing - Letting others use equipment or space that your business owns.

Syndication - Allowing others to use your creative works at a cost (more frequent in TV and radio)

Freemium - Where customers can get a free version with limited features and or advertisements or pay for a version with all features and/or no advertisements

Asset Sale - Selling ownership rights to a physical product. (Ford Motors sells cars, Amazon sells books)

Brokerage Fees - Generating revenues by being an intermediate between two or more parties. (Credit card companies, real estate brokers)