Hello, I am Christina Pine. I am digital marketing specialist and freelancer. PPC or pay-per-click services refer to a type of online advertising where advertisers pay each time a user clicks on their ads. The cost of the ad depends on the competitiveness of the keyword or the target audience. PPC services are popular because they allow advertisers to target specific demographics, locations, and interests, and provide instant results in terms of website traffic and conversions. To create effective PPC campaigns, advertisers must conduct thorough keyword research, create compelling ad copy.