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.
A service-level Agreement is an agreement between two or more parties, where one is the customer and the others are service providers.rom Wikipedia, the free encyclopedia. A service-level agreement (SLA) is a part of a service contract where a service is formally defined. Particular aspects of the service-scope, quality, responsibilities-are agreed between the service provider and the service user.