advertising network: Revenue sharing where ads are bought through a single company and then displayed on other sites that recieve a percentage of the revenue.
algorithm: Search Engine technology for displaying results.
click through rate (CTR): Measures the amount of clicks on an ad as a percentage of clicks to impressions.
content network: Websites that display the ads in an advertising network. They receive a percentage of the revenue though pay per click.
contextual advertising: Focused advertising where content driven sites display ads with similar content.
cost per action (CPA): The process by which payment for advertising is contingent upon an action by the consumer, whether it be a purchase, signing up for a newsletter, or signing up for membership.
cost per click (CPC): Also called pay per click, it is the idea that an advertiser is paid everytime a visitor clicks on the link. Advertisers can set the cost for evey click.
cost per thousand (CPM): Process by which advertisers are paid by impressions. They receive revenue per 1,000 impressions.
geo-targeting: Targeting consumers with ads that are displayed in their geographic location.
inbound link: A hyper-link from an outside website linking to your website.
keyword: Words or phrases that are picked to receive search results for a particular subject.
link bait: Editorial content usually submitted to social networking sites to drive more traffic to websites.
link building: The process of getting outside websites to link to your sites, in an effort to increase your traffic.
meta tags: Placed in the header of a website, these are tags which can be read by search engines to give them more info about your site. The content description tag and the title tag are shown in search results.
pay per click (PPC): See Cost per Click (CPC).
quality score: search engine spiders use this as the process of ranking ads and links to determine the importance of websites.
return on investment (ROI): Amount of money an investor receives as apposed to how much is paid.
search engine marketing (SEM): Building and marketing a site so that it will achieve higher search results and more traffic.
search engine optimization (SEO): The search engine marketing process of optimizing a site so that it will show up as high as possible in the search results. Search Engine Marketers use this term to describe the majority of their services for websites.
search engine results pages (SERPs): The results page that search engines show after someone has searched for a particular keyword or phrase.
social media: Websites based on user generated content. These include but aren’t limited to social networking like LinkedIn or Facebook, social bookmarking sites like Del.icio.us, and social news sites like Digg or Reddit.
spider: Also known as a “crawler” or a “bot.,” this term refers to the software developed by search engine companies to search and index the web for their search results.
title tag: The html tag that is displayed on the top of a browser as the title of the site. Search engine Marketers use the title tag to display relevant keywords for the site to aid in search results.
universal search: Also known as blended, or federated search results, universal search pulls data from multiple databases to display on the same page. Results can include images, videos, and results from specialty databases like maps and local information, product information, or news stories.
Web 2.0: This is considered the second generation of web with social media and social networking sites. Sites like Wikipedia that involve user created content are considered Web 2.0.