Paid Search (PPC): Paid search results are advertisements. A business pays to have their ads displayed when users do a search containing specific keywords. The ads are typically displayed above and to the right of organic search results. The exact placement of the ads is determined by both a bidding process and quality score. The advantages and drawbacks of paid search are often the opposite of organic listings.
Remember when you used to rely solely on search engines for traffic? Remember when you worked on SEO and lived and died by your placement in Google? Were you #1? Assured success. Well, okay, maybe not assured. Success only came if the keywords were relevant to your site users, but it was the only real roadmap to generating site traffic and revenue.