In contrast, content sites commonly charge a fixed price per click rather than use a bidding system. PPC display advertisements, also known as banner ads, are shown on web sites with related content that have agreed to show ads and are typically not pay-per-click advertising.
A service-level agreement (SLA) is a contract between a service provider and its internal or external customers that documents what services the provider will furnish.
Rights and Responsibilities of Clients in Contracts for Services. A contract for services is a contract by which a provider of services agrees to provide a service to a client in exchange for a payment. Here's an overview of the rights and responsibilities of a client who hires a provider of services.