E-Marketing, also referred to as internet advertising, online advertising or online marketing is the process of marketing products or services over the internet.
There are many different ways to harness the power of the web in marketing.
E-Marketing combines technical and creative aspects of the web which can include design, development, sales and advertising.

A few E-Marketing strategies include the following

Affiliate Marketing
Behavioral Marketing
Cause Marketing
Contextual Advertising
Customer Relationship Management Marketing (CRM)
Digital Marketing
Display Advertising
E-mail Marketing
In-text Advertising
Interactive Advertising
Internet News Releases
Newsletter Marketing
Online Market Research
Online Reputation Management (ORM)
Search Engine Marketing (SEM)
Pay Per Click (PPC)
Search Engine Optimization (SEO)
Social Media Marketing
Blog Marketing
Multivariate Testing or Optimization
Viral Marketing
Software-Based Advertising