Affiliate marketing is commonly confused with referral marketing, as both forms of marketing use third parties to drive sales to the retailer. The two forms of marketing are differentiated, however, in how they drive sales, where affiliate marketing relies purely on financial motivations, while referral marketing relies more on trust and personal relationships.[citation needed]

Affiliate marketing occurs when advertisers organize third parties to generate potential customers for them. Third-party affiliates receive payment based on sales generated through their promotion.[24]:22 Affiliate marketers generate traffic to offers from affiliate networks, and when the desired action is taken by the visitor, the affiliate earns a commission. These desired actions can be an email submission, a phone call, filling out an online form, or an online order being completed.
You’re probably already getting referrals and don’t even know it. Google Analytics has a whole section on referrals that can help you pinpoint other sites that are linking and referring people to you. This report can be can be broken down to not just visitors but customers as well, giving you a deep understanding of which of the referring websites are the most qualified. 
Affiliates may mistakenly promote your brand or product in a way you don’t like if they aren’t given affiliate guidelines. Make your affiliates aware of your brand mission, voice, and tone. You should also give specific instructions on how your branding and company logo should be displayed. Consider asking to see the creative before it’s published. You can provide a welcome email to your affiliates with a background on your program, your most successful products, and ideas on how to promote you. You can also incorporate online monitoring tools to keep an eye on affiliate content.
If your referral program isn’t public facing or it’s difficult to use and share with the click of a button, then you’ll severely limit your ability to drive word-of-mouth and referrals. Also, if you’re requiring customers to manually input a potential referral’s information, good luck. For customers, this annoyance creates a barrier that significantly hinders referral activity.
Video advertising - This type of advertising in terms of digital/online means are advertisements that play on online videos e.g. YouTube videos. This type of marketing has seen an increase in popularity over time.[51] Online Video Advertising usually consists of three types: Pre-Roll advertisements which play before the video is watched, Mid-Roll advertisements which play during the video, or Post-Roll advertisements which play after the video is watched.[52] Post-roll advertisements were shown to have better brand recognition in relation to the other types, where-as "ad-context congruity/incongruity plays an important role in reinforcing ad memorability".[51] Due to selective attention from viewers, there is the likelihood that the message may not be received.[53] The main advantage of video advertising is that it disrupts the viewing experience of the video and therefore there is a difficulty in attempting to avoid them. How a consumer interacts with online video advertising can come down to three stages: Pre attention, attention, and behavioural decision.[54] These online advertisements give the brand/business options and choices. These consist of length, position, adjacent video content which all directly affect the effectiveness of the produced advertisement time,[51] therefore manipulating these variables will yield different results. Length of the advertisement has shown to affect memorability where-as longer duration resulted in increased brand recognition.[51] This type of advertising, due to its nature of interruption of the viewer, it is likely that the consumer may feel as if their experience is being interrupted or invaded, creating negative perception of the brand.[51] These advertisements are also available to be shared by the viewers, adding to the attractiveness of this platform. Sharing these videos can be equated to the online version of word by mouth marketing, extending number of people reached.[55] Sharing videos creates six different outcomes: these being "pleasure, affection, inclusion, escape, relaxation, and control".[51] As well, videos that have entertainment value are more likely to be shared, yet pleasure is the strongest motivator to pass videos on. Creating a ‘viral’ trend from mass amount of a brands advertisement can maximize the outcome of an online video advert whether it be positive or a negative outcome.
Marketing can be expensive and time-consuming. Referral marketing is anything but this. In fact, referrals are the cheapest and most effective form of marketing and shouldn’t be ignored. In its simplest form, referral marketing doesn’t cost a dime. All you need to do is provide a good customer experience and tell your clients to spread the word. That’s it. But that would be leaving a lot of referral marketing’s potential on the table.
According to a paper by Duncan Watts and colleagues entitled: "Everyone's an influencer",[66] the most common risk in viral marketing is that of the influencer not passing on the message, which can lead to the failure of the viral marketing campaign. A second risk is that the influencer modifies the content of the message. A third risk is that influencers pass on the wrong message. This can result from a misunderstanding or as a deliberate move.
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