Pay-per-click is the staple of digital marketing efforts for a huge number of businesses. Paid ads in search engines, most notably Google, can get the website on the fastest track to getting more visitors. This type of advertising is a flexible tool that can adapt almost instantly to the changing market conditions and it can also be a cost-effective, depending on the circumstances.
The development of pay-per-click advertising runs parallel with the advancement of search engines and the shifts in user behavior. Have a look at this infographic for more insight on the PPC development timeline.