Search engine marketing
Search engine marketing SEM is a form of Internet marketing that involves the promotion of websites by increasing their visibility in search engine results pages SERPs primarily through paid advertising1 SEM may incorporate search engine optimization SEO, which adjusts or rewrites website content and site architecture to achieve a higher ranking in search engine results pages to enhance pay per click PPC listings2
Contents
1 Market
2 History
3 Methods and metrics
4 Paid inclusion
5 Comparison with SEO
6 Ethical questions
7 Examples
8 See also
9 References
Market
In 2007, US advertisers spent US$246 billion on search engine marketing3 In Q2 2015, Google 737% and the Yahoo/Bing 263% partnership accounted for almost 100% of US search engine spend4 As of 2006, SEM was growing much faster than traditional advertising and even other channels of online marketing5 Managing search campaigns is either done directly with the SEM vendor or through an SEM tool provider It may also be self-serve or through an advertising agency As of October 2016, Google leads the global search e Search engine marketing
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