Before you can create YouTube video ads as part of your marketing campaign, you must link your AdWords account to your YouTube account. Then you’ll need to import your video into AdWords - or create it if it doesn’t already exist. Once you upload the video, you’ll be able to choose a thumbnail and write some appealing ad text to encourage viewers to watch. The next step is to choose your target audience and budget. Provide some billing information, and you’re ready to run your first video ad.
In February 2000, Amazon announced that it had been granted a patent on components of an affiliate program. The patent application was submitted in June 1997, which predates most affiliate programs, but not PC Flowers & Gifts.com (October 1994), AutoWeb.com (October 1995), Kbkids.com/BrainPlay.com (January 1996), EPage (April 1996), and several others.
TV used to be the place where businesses would want their ads to play. They could reach thousands upon thousands of people right in their own living rooms. But going into 2019, fewer companies will be putting their money into TV ads and instead turning to Youtube ads. Not only are Youtube ads less expensive than prime time TV ads, but they reach more people.
In 2006, the most active sectors for affiliate marketing were the adult gambling, retail industries and file-sharing services.:149–150 The three sectors expected to experience the greatest growth are the mobile phone, finance, and travel sectors. Soon after these sectors came the entertainment (particularly gaming) and Internet-related services (particularly broadband) sectors. Also several of the affiliate solution providers expect to see increased interest from business-to-business marketers and advertisers in using affiliate marketing as part of their mix.:149–150
Before launching any marketing campaign, it’s important to determine your primary video goal. This could be to increase brand awareness, engagement, or even conversions for a free trial. It’s crucial to pick out just one or two goals for each video. When you define more than that, your video will seem unfocused, making it difficult for viewers to determine what they should do next.
Viral marketing can be less expensive than traditional marketing campaigns, yet grow faster — especially with the help of social networks as a "force multiplier." Since it can receive so much traffic in a short time, it can also lead to mainstream media attention. Social media can also cause viral marketing efforts to misfire, as messages are altered, misconstrued, considered spam or called out for missing the mark. Viral marketing success can also be hard to measure.
'The influencers in order to communicate marketing messages to the audiences you seek to reach'. In business, it is indicated that people prefer interaction with humans to a logo. Therefore, it seems that influencers are on behalf of a company to build up a relationship between the brand and their customers. Companies would be left behind if they neglected the trend of influencers in viral marketing, as over 60% of global brands have used influencers in marketing in 2016. The influencer types come along with the level of customers' involvement in companies' marketing. First, unintentional influences, because of brand satisfaction and low involvement, their action is just to deliver a company's message to a potential user. Secondly, users will become salesmen or promoters for a particular company with incentives. For example, ICQ offered their users benefits to create the awareness of their friends. Finally, the mass reached influencers are those who have a huge range of followers on the social network. Recent trend in businesses activity is to offer incentives to individual users for re-posting the advertisement messages to their own profiles. A common type of an incentive puts all the re-posting users into a random draw for a valuable gift 
For example, digital purchases and physical product orders are treated differently. In general, any order that a customer places within 24 hours of reaching Amazon through one of your links is counted towards your commission. And, if they add something to their cart during this period, as long as they checkout within 89 days of their initial click through, you’ll receive credit for the completed transaction.
You may use both cash or non-cash incentives for referral marketing example, but a Chicago University study found that non-monetary incentives were more effective than cash benefits by 24%. It is also better to not confine referral to customers or employees alone, referral marketing websites can also be used to new customers and lure them into referral marketing programs.