Marketing has changed more in the past 10 years than it had in the previous 100—launching us out of the age of TV spots and print ads and into the age of websites, online video, social media, and Google. Consumers today are connected to the web 24/7—U.S. adults now spend upwards of 6 hours per day consuming digital media, and that doesn’t count those whose jobs are internet-dependent.
The first known large-scale non-commercial spam message was sent on 18 January 1994 by an Andrews University system administrator, by cross-posting a religious message to all USENET newsgroups. In January 1994 Mark Eberra started the first email marketing company for opt in email list under the domain Insideconnect.com. He also started the Direct Email Marketing Association to help stop unwanted email and prevent spam.  
Organic SEO's flip-side offers up a paid method for marketing on search engines like Google. SEM provides an avenue for displaying ads through networks such as Google's Adwords and other paid search platforms that exist across the web throughout social media sites like Facebook, Instagram and even video sites like YouTube, which, invariably, is the world's second largest search engine.
While there are currently tens of millions of blogs worldwide, close to 60 million powered by WordPress alone, many bloggers are not yet monetizing their sites. If you're one of these bloggers, a good place to start is with affiliate marketing: directing readers to a product or service in exchange for a commission on the sale (or other action) when it occurs.
Affiliate marketing overlaps with other Internet marketing methods to some degree, because affiliates often use regular advertising methods. Those methods include organic search engine optimization (SEO), paid search engine marketing (PPC – Pay Per Click), e-mail marketing, content marketing, and (in some sense) display advertising. On the other hand, affiliates sometimes use less orthodox techniques, such as publishing reviews of products or services offered by a partner.