A cost model allowing advertisers to pay for performance by only being charged when a targeted lead is brought to their website, NOT when their advert is shown.
The 3 main providers in the UK are Google (Google Adwords), Overture and Espotting.
Refreshed Media are certified Google Adwords professionals and can setup, optimise and manage Pay Per Click campaigns, ensuring your company gets maximum Return On Investment, but with no technical overhead.
More on Pay Per Click (PPC) Advertising.