Internet Marketing, also called Online advertising, uses the Internet to deliver promotional marketing messages to consumers. It includes email marketing, search engine marketing, social media marketing, many types of display advertising (including web banner advertising), and mobile advertising. Like other advertising media, online advertising frequently involves both a publisher, who integrates advertisements into its online content, and an advertiser, who provides the advertisements to be displayed on the publisher's content. Other potential participants include advertising agencies who help generate and place the ad copy, an ad server who technologically delivers the ad and tracks statistics, and advertising affiliates who do independent promotional work for the advertiser.

Despite its popularity, many common online advertising practices are controversial and increasingly subject to regulation. Furthermore, online ad revenues may not adequately replace other publisher's revenue streams. Declining ad revenue has led some publishers to hide their content behind paywalls.

Delivery Methods

• Display advertising
• Web banner advertising
• Frame ad (traditional banner)
• Pop-ups/pop-unders
• Floating ad
• Expanding ad
• Trick banners
• Interstitial ads
• Text ads
• Search Engine Marketing (SEM)
• Search Engine Optimization (SEO)
• Sponsored search
• Social media marketing
• Mobile Advertising
• Email Advertising
• Chat advertising
• Online classified advertising
• Affiliate Marketing