Search engine optimization & Search engine marketing

Difference between  Search engine optimization and  Search engine marketing

Search engine optimization

SEO is the process of improving the volume and quality of traffic to a web site from search engines via "natural" ("organic" or "algorithmic") search results.

Search engine marketing

A form of Internet Marketing that seeks to promote websites by increasing their visibility in the Search Engine result pages.

Unique Browser & Unique visitor & Unique user & Unique Device & Unique Cookie

Unique Browser

An identified and unduplicated Cookied Browser that accesses Internet content or advertising during a measurement period. This definition requires taking account for the potentially inflationary impact of cookie deletion among certain of the cookied browsers that access Internet content.

Unique Cookie

A count of unique identifiers…that represents unduplicated instances of Internet activity (generally visits) to Internet content or advertising during a measurement period.

Unique Device

An unduplicated computing device that is used to access Internet content or advertising during a measurement period. A count of unduplicated devices necessarily accounts for multiple browser usage on an individual computer or other computing device.

Unique user

Unique individual or browser which has accessed a site or application and has been served unique content and/or ads such as e-mail, newsletters, interstitials or pop-under ads. Unique visitors can be identified by user registration, cookies, or third-party measurement like ComScore or Nielsen. Reported unique visitors should filter out bots. See iab.net for the audience reach measurement guidelines.

Unique visitor

Unique individual or browser which has accessed a site or application and has been served unique content and/or ads such as e-mail, newsletters, interstitials or pop-under ads. Unique visitors can be identified by user registration, cookies, or third-party measurement like ComScore or Nielsen. Reported unique visitors should filter out bots. See iab.net for the audience reach measurement guidelines.

Unique listeners/streamers : A metric specific to Digital Audio

The size of the audience for a given audio program, piece of content, or advertising message. Typically ‘listeners’ and ‘streamers’ are interchangeable.

NAI - (Network Advertising Initiative)

A cooperative group of network advertisers which has developed a set of privacy principles in conjunction with the Federal Trade Commission. The NAI provides consumers with explanations of Internet advertising practices and how they affect both consumers and the Internet. See networkadvertising.org for more information.