E Ink (electronic ink) is a paper-like display technology, characterized by high brightness and contrast, a wide viewing angle, and ultra-low power requirements. It is currently available commercially in grayscale and color and is commonly used in mobile devices such as e-readers and, to a lesser extent, mobile phones and watches.

The conduct of business on the Internet, not only buying and selling but also servicing customers and collaborating with business partners.

The buying and selling of goods and services on the Internet, especially the World Wide Web. 

E-commerce hosting is a business in which a company provides other companies whatever they need to sell their products and services on the World Wide Web.

E-Governance is the public sector's user of information and communication technology for delivering government services.

E-learning refers to the education through the use of electronic media and information and communication technologies (ICT). E-learning is broadly inclusive of all forms of educational technology in learning and teaching. E-learning is inclusive of, and is broadly synonymous with multimedia learning, computer-based instruction (CBI), computer-based training (CBT), computer-assisted instruction or computer-aided instruction (CAI), internet-based training (IBT),  online education,  virtual learning environments (VLE), m-learning, and digital educational collaboration etc.

Tools that facilitate the process of delivering E-learning solutions to the end user.

The exchange of computer-stored messages by telecommunication. E-mail messages are usually encoded in ASCII text. However, you can also send non-text files, such as graphic images and sound files, as attachments sent in binary streams.

A systematic approach to saving and protecting the data contained in e-mail messages so it can be accessed quickly at a later date.

A system in which senders of commercial e-mail messages pay a small fee to ensure that their messages will bypass spam filter s to reach intended recipients. 

E-mail hosting is an Internet hosting service that operates email servers. This is a service often provided by most web hosting companies to small or medium sized business (SME), who want to host their business emails. E-mail hosting services generally include IMAP/POP3, spam/virus protection, aliases, forwarders, autoresponders, attachments, robust spam/virus protection, mail rules, online storage, calendars, mailing lists, whitelists, blacklists, backups, archiving, folder management, contacts management, etc.

E-mail scanners are  security systems that protects your mail servers/personal computers/mail inbox against viruses and spam spreading via an e-mail.

An application that receives incoming e-mail from local users and remote senders and forwards outgoing e-mail for delivery. A computer dedicated to running such applications is also called a mail server. 

The forgery of an e-mail header so that the message appears to have originated from someone or somewhere other than the actual source. Spoofing in often used in an attempt to get recipients to open, and even respond to solicitations.

e-Payment (also called as electronic payment / digital payment) is a subset of an e-commerce transaction to include electronic payment for buying and selling goods or services offered through the Internet.

E-procurement is the business-to-business or business-to-consumer or business-to-government purchase and sale of supplies, work, and services through the Internet as well as other information and networking systems, such as electronic data interchange and enterprise resource planning.