In computing, multi-touch is technology that enables a surface (a trackpad or touchscreen) to recognize the presence of more than one or more than two points of contact with the surface.

The origins of multitouch began at CERN, MIT, University of Toronto, Carnegie Mellon University and Bell Labs.

The term "multi-touch" was popularized in 2007 by Apple, though it was in use as early as 1985.

This plural-point awareness may be used to implement additional functionality, such as pinch to zoom or to activate certain subroutines attached to predefined gestures.

A clickstream is the recording of the parts of the screen a computer user clicks on while web browsing or using another software application.

As the user clicks anywhere in the webpage or application, the action is logged on a client or inside the web server, as well as possibly the web browser, router, proxy server or ad server.

Clickstream analysis is useful for web activity analysis, software testing, market research, and for analyzing employee productivity.

Google AdWords is an online advertising service, developed by Google, where advertisers pay to display brief advertising copy to web users.

Google AdWords' system is based partly on cookies and partly on keywords determined by advertisers.

Google uses these characteristics to place advertising copy on pages where it is relevant.

Advertisers pay when users divert their browsing to click on the advertising copy.

Partner websites receive a portion of the generated income.

A web banner or banner ad is a form of advertising on the World Wide Web delivered by an ad server.

This form of online advertising entails embedding an advertisement into a web page.

It is intended to attract traffic to a website by linking to the website of the advertiser.

In many cases, banners are delivered by a central ad server.

When the advertiser scans their logfiles and detects that a web user has visited the advertiser's site from the content site by clicking on the banner ad, the advertiser sends the content provider some small amount of money (usually around five to ten US cents).

This payback system is often how the content provider is able to pay for the Internet access to supply the content in the first place.

Usually though, advertisers use ad networks to serve their advertisements, resulting in a revshare system and higher quality ad placement.

A brand (or marque for car model) is a name, term, design, symbol, or other feature that distinguishes one seller’s product from those of others.

Brands are used in business, marketing, and advertising.