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 contract of service is an agreement between an employer and an employee. In a contract for service, an independent contractor, such as a self-employed person or vendor, is engaged for a fee to carry out an assignment or project.t can be in the form of a letter of appointment or employment, or an apprenticeship agreement. However, to minimise disputes on the agreed terms and conditions, the contract should be in writing.