Internet marketing is the practice of using internet for marketing of products or services. Sometimes called as I-marketing, web marketing, online marketing, or eMarketing.

The main feature for internet marketing is the quick response. This includes the Internet, e-mail, and wireless media, management of digital customer data and electronic customer relationship management systems. Electronic CRM manages relationship with the customers with the use of information technology.

Internet marketing also refers to the placement of media along various stages of the customer engagement cycle through search engine marketing (SEM), search engine optimization (SEO), banner ads on specific websites, email marketing.
Internet marketing is related with some business models

Lead-based websites – an organization that generates value by acquiring sales leads from its website

E-commerce – goods are directly sold to consumers

Publishing – sale of advertising

Affiliate marketing – a product developed by one person and sold by others

Search engine marketing – seeks to promote website by increasing their visibility in search engine result pages through the use of contextual advertising, paid inclusion.

One-to-one approach – The user receives the marketing messages personally, many users can interconnect as peers with Web 2.0 tools.

Appeal to specific interests – The marketers normally divide their markets depends on the age group, gender, geography, and other general factors. There is some difference between the internet marketing and magazine advertisements, where the goal is to appeal to the projected demographic of the periodical, but rather the advertiser has knowledge of the target audience, people who engage in certain activities.

Geo targeting – determines the physical location of a website visitor with geo location software, and delivering different content to that visitor.

Automated different content – The delivery content is generally automated. The content may be based on the location and other personal information.