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 fee agreement is a written statement signed by the claimant and his or her appointed representative specifying the fee the representative expects to charge and collect, and the claimant expects to pay, for services the representative provides in pursuing the claimant's benefit rights in proceedings before the Social Security Administration (SSA).