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Avatar
An avatar is an online icon that a user chooses when registering on a website or online discussion forum. The avatar name and image typically shows up next to any contributions the user makes on the website.

Blog
Instead of writing confidential entries in a book that no one is supposed to see, people now can share their personal feelings and experiences with thousands of people around the world. Blogs are typically updated daily, monthly, or anywhere in between.

CMS
A content management system (CMS) is a web application used for managing websites and web content, though in many cases, content management systems require special client software for editing and constructing articles.

Cross-browser compatibility
Cross-browser means that a website is compatible with multiple Web browsers. This means the Web pages show up the same in different browsers, such as Internet Explorer, Firefox, Safari, Opera and Chrome.

CSS or "Cascading Style Sheet"
Cascading style sheets are used to format the layout of Web pages. They can be used to define text styles, table sizes, and other aspects of Web pages creating a uniform look across a Web site. Commonly used styles need to be defined only once in a CSS document. Once the style is defined in cascading style sheet, it can be used by any page that references the CSS file. Plus, CSS makes it easy to change styles across several pages at once. CSS gives Web developers more exact control over the formatting of webpages and also increases the page's loading time.

DNS
Without DNS, we would have to remember the IP address of every site we wanted to visit, instead of just the domain name. Can you imagine having to remember "17.254.3.183" instead of just "apple.com"?

Domain Name
This is the name that identifies an Web site. For example, "microsoft.com" is the domain name of Microsoft's Web site. There are also domain names that have been registered, but are not connected to a Web server. The most common reason for this is to have e-mail addresses at a certain domain name without having to maintain a Web site. In these cases, the domain name must be connected to a machine that is running a mail server.

E-commerce sites
E-commerce (electronic-commerce) sites are online businesses. Web sites such as Amazon.com and eBay are e-commerce sites. The two major forms of e-commerce are Business-to-Consumer (B2C) and Business-to-Business (B2B). While companies like Amazon.com cater mostly to consumers, other companies provide goods and services exclusively to other businesses. The terms "e-business" and "e-tailing" are often used synonymously with e-commerce.

E-mail Marketing
E-mail marketing and Web advertising provide unique advantages over traditional marketing strategies. For example, e-mail marketing allows companies to send out promotional mailings at little to no cost. Similarly, Web advertising allows companies to only pay for leads that direct users to their websites. Both types of marketing provide an efficient way for companies to use their advertising budget.

Facebook
Most people these days have at least heard of Facebook. Originally designed for college students, these days people of all ages are using it, even businesses are creating a presence. Facebook users can create and customize their own profiles with photos, videos, and information about themselves. Friends can browse the profiles of other friends and write messages on their pages.

Flash
Flash is a multimedia technology used for creating animations and interactive websites. Some examples include splash screen animations, YouTube videos, and interactive song playlists. In order to view Flash content in your Web browser, the Flash plug-in must be installed. Since so many websites now incorporate Flash, the plug-in is included with nearly all Web browsers today.

FTP
FTP stands for "File Transfer Protocol." It is a common method of transferring files via the Internet from one computer to another. Web designers use ftp to upload websites to the server they sit on. Ftp details usually consist of a username, password, ftp host and directory name.

HTML
HTML stands for "Hyper-Text Markup Language." This is the language that Web pages are written in. Web pages must conform to the rules of HTML in order to be displayed correctly in a Web browser. Within this family you will also find XHTML.

PHP
PHP is a Web scripting language. The goal of the language is to allow Web developers to write dynamically generated pages quickly and easily. PHP is also great for creating database-driven Web sites and sites with blog or CMS built into them.

SEO
SEO stands for "Search Engine Optimization." Just about every company wants their site to appear in the top listings of the search engines. For example, a bakery based in London would want to show up in the top few listings when someone searches for "London bakery". The problem is that there are thousands of other bakers with websites, who are hoping for the same thing. SEO involves a number of adjustments to the HTML of pages to achieve a high search engine ranking including page titles, META tags, description and keywords.

Twitter
Twitter is a service that allows people to stay connected with each other by answering the basic question, "What are you doing?" Once you sign up for a Twitter account, you can post your own updates, or "tweets," using a computer or mobile phone. You can also view the updates posted by other users you are following. Since each tweet is limited to 140 characters or less, the updates must be short and sweet. However, you may twitter as often as you want, meaning there is no limit on how much information you can share.

URL
A URL is the address of a specific Web site or file on the Internet. It cannot have spaces or certain other characters and uses forward slashes to denote different directories.

Web 2.0
Web 2.0 is term that was introduced in 2004 and refers to the second generation of the World Wide Web. Web 2.0 does not refer to a specific version of the Web, but rather a series of technological improvements.

Some examples of features considered to be part of Web 2.0 are listed below:

Web 2.0 technologies provide a level user interaction that was not available before. Websites have become much more dynamic and interconnected, producing "online communities" and making it even easier to share information on the Web. Because most Web 2.0 features are offered as free services, sites like Wikipedia and Facebook have grown at amazingly fast rates. As the sites continue to grow, more features are added, building off the technologies in place. So, while Web 2.0 may be a static label given to the new era of the Web, the actual technology continues to evolve and change.

Webmail
There are two primary ways of checking your e-mail – using an e-mail program like Microsoft Outlook or with a Web-based interface called webmail. When you check or send e-mail via the Web, you are using webmail. Most free e-mail services, such as Gmail, Hotmail, and Yahoo! Mail offer webmail interfaces that allow you to send, receive, and organize your e-mail on the Web. If you own a domain name, many Web hosts also offer a webmail interface to use with your domain name or website.

W3c
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web (abbreviated WWW or W3).