Search engine advertising is a method in which a link to the site (which has implemented the ppc services of a ppc company) is presented in a search engine. A link presented following a consumer's search using a traditional search engine is often times considered less intrusive than a traditional, obstructive advertisement. A search engine link is more subtle and could be considered to be trusted more by those who rely on search engines to provide them with their web destinations.
Search engine marketing is also cost effective if a ppc advertising model is chosen... an advertisement is still visible to consumers even if they choose not to click and follow the link. This creates visibility at zero cost to the advertiser. Given the popularity of consumers relying upon search engines, a ppc search engine promotion is one of the most productive and cost effective strategies a site or business can implement to help drive traffic to their site.