Stands for Linux, Apache, MySQL, and PHP (or sometimes Perl or Python), and is referring to the specifications of a web server (defining the operating system, web server, database, and scripting language, in that order). One of the advantages of LAMP setups is that the software used is all free and open source.

Is a standalone web page, created specifically for the purposes of a marketing or advertising campaign. It's where a visitor “lands” when they have clicked on a Google AdWords ad or similar.

The process of improving elements on a landing page to increase conversions.

The process of generating consumer interest for a product or service with the goal of turning that interest into a sale.

An umbrella term to describe the centralized media institutions that were dominant during the second half of the 20th century, including — but not limited to — television, radio, newspapers, and magazines, all which generally had a uni-directional distribution model. Sometimes “legacy media” is used interchangeably with “MSM,” for “Mainstream Media.” Legacy media sits in contrast with social media, where the production and sharing is of equal weight to the consumption.

In the context of programming, this contains code that can be accessed for software and Web development, enabling one to perform common tasks without writing new code every time. Many libraries are freely shared. One well-known library is jQuery, released in 2006 and now the most popular JavaScript library, which boasts that it allows coders to “write less, do more.”

An estimate of the average revenue that your customers will generate throughout their lifespan as a customer

The total revenue that a customer is expected to generate during their tenure as a customer, crucial for understanding long-term business viability.

A link farm is any website set up specifically to increase the link popularity of other websites by increasing the number of incoming links to that site. While some link farms are single pages listing unrelated links, others consist of networks of sites that contain multiple links back and forth to one another. Search engines can generally recognize these types of schemes and often remove link farms from their directories and penalize the sites linking to and from them.

A social networking site for professionals. Registered users may list their employment and educational history on their profiles, connect with friends and colleagues, follow companies, join interest groups, share content and have discussions. LinkedIn is the largest professional directory of individuals and companies with over 250 million users.

A liquid layout is one that is based on percentages of the browser window size. The layout of the site will change the width of the browser, even if the visitor changes their browser size while viewing the page. Liquid layouts take full advantage of the browser width a visitor is using, optimising the amount of content you can fit onscreen at one time.

List segmentation is the creation of further smaller lists from the existing list that allows you to send the right people the most pertinent content at the ideal time.

Similar to live television or live radio, live blogging is a blog post or series of posts intended to provide real-time textual coverage of an event.

A service, usually in a mobile Web or mobile device application, that uses your location in order to perform a certain task, such as finding nearby restaurants, giving you directions, or locating your friends. Foursquare and Gowalla are location-based services.

Customer Churn (Logo Churn) , this metric measures the number of customers you lose over a period of time.

A loyalty program is a rewards program offered by a company to customers who frequently make purchases. A loyalty program may give a customer advanced access to new products, special sales coupons or free merchandise.