To help ensure your site remains current, with fresh content that’s useful to your audience, a content calendar is key. Spend a few hours at the beginning of the month planning out which topics you’ll cover each week. Writing a fresh blog post every few days, and strategically placing links to other relevant pages on your site is a great way to help site visitors engage with every part of your site.
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.  
Website: Websites are a great way to establish your brand identity. They can use text, images, audio, and video elements to convey the company's message, as well as inform existing and potential customers of the features and benefits of the company's products or services. The website may or may not include the ability to capture leads from potential customers or directly sell a product or service online.
Endorsements are a form of advertising that uses famous personalities or celebrities who command a high degree of recognition, trust, respect or awareness amongst the people. Such people advertise for a product lending their names or images to promote a product or service. Advertisers and clients hope such approval, or endorsement by a celebrity, will influence buyers favourably. For example, Sach
Cost per click was more common in the early days of affiliate marketing but has diminished in use over time due to click fraud issues very similar to the click fraud issues modern search engines are facing today. Contextual advertising programs are not considered in the statistic pertaining to the diminished use of cost per click, as it is uncertain if contextual advertising can be considered affiliate marketing.
Between 1996–1997, Hotmail was one of the first internet businesses to become extremely successful utilizing viral marketing techniques by inserting the tagline "Get your free e-mail at Hotmail" at the bottom of every e-mail sent out by its users. Hotmail was able to sign up 12 million users in 18 months. At the time, this was historically the fastest growth of any user based media company. By the time Hotmail reached 66 million users, the company was establishing 270,000 new accounts each day.
Social Media Marketing - The term 'Digital Marketing' has a number of marketing facets as it supports different channels used in and among these, comes the Social Media. When we use social media channels ( Facebook, Twitter, Pinterest, Instagram, Google+, etc.) to market a product or service, the strategy is called Social Media Marketing. It is a procedure wherein strategies are made and executed to draw in traffic for a website or to gain attention of buyers over the web using different social media platforms.
Are you launching a new product or a service? Create a video to show how it works. 98% of users say they’ve watched an explainer video to learn more about a product or service. That is why 45% of businesses who use video marketing said that they have an explainer video on their home page. Of those businesses, 83% said that their homepage explainer video was effective.
Online referral marketing focuses on interactions between customers. The Internet is a common channel for referral-based marketing. It delivers abundant outlets for customers to share their opinions, product favourites, and experiences, including the company's website and through social media such as LinkedIn, Facebook, Twitter, and Google+. The marketers can encourage the referring parties by providing pre-scripted messages. Advocates can provide their family members and friends with personalised links including unique referral codes and advertisement information through e-mails, blogs and instant messages. The company can give rewards to advocates when their family members and friends buy through the link.
^ Semenov, Alexander; Alexander Nikolaev; Alexander Veremyev; Vladimir Boginski; Eduardo Pasiliao (2016). Analysis of Viral Advertisement Re-Posting Activity in Social Media. Computational Social Networks. CSoNet 2016. Lecture Notes in Computer Science, Vol 9795. Lecture Notes in Computer Science. 9795. pp. 123–134. doi:10.1007/978-3-319-42345-6_11. ISBN 978-3-319-42344-9.