The HTML tag is meant to be a concise explanation of a web page’s content. Google displays your meta description beneath the page title in their organic results. While meta descriptions aren’t as important as page titles in your Google ranking, they do play a big role in getting clicks from users. People read descriptions as a preview of your page and use it to determine if your content is worth visiting. You should keep your meta descriptions to under 150 characters since Google won’t display text beyond that. You should also include target keywords in your text, since any words matching a user’s search query will be displayed in bold.
In 2007, U.S. advertisers spent US $24.6 billion on search engine marketing. In Q2 2015, Google (73.7%) and the Yahoo/Bing (26.3%) partnership accounted for almost 100% of U.S. search engine spend. As of 2006, SEM was growing much faster than traditional advertising and even other channels of online marketing. 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 engine market with a market share of 89.3%. Bing comes second with a market share of 4.36%, Yahoo comes third with a market share of 3.3%, and Chinese search engine Baidu is fourth globally with a share of about 0.68%.
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.