Before the challenge, ALS was known to much fewer people. But things changed after the challenge, and it was everywhere on Twitter, Facebook, YouTube, news, events, etc. The reason was the visibility created by the campaign. You need to create awareness about your brand through various marketing channels. People will prefer to buy from you only if they know about you.
A study conducted by the Goethe University Frankfurt and the University of Pennsylvania, on referral programs and customer value which followed the customer referral program of a German bank that paid customers 25 euros for bringing in a new customer, was released in July 2010.[5] According to Professor Van den Bulte, this is the First ever study published on the financial evaluation of customer referral programs.[6] The study found that referred customers were both more profitable and loyal than normal customers. Referred customers had a higher contribution margin, a higher retention rate and were more valuable in both the short and long run.[5]
But as with everything, there are cons to go with the pros. While a good viral marketing campaign can bring massive awareness about your brand in a cost-effective manner, it also has the capability to dilute your brand. Or at its very worst, build negative buzz regarding your brand and products. This is when “too much of a good thing” may just hurt your work in building your organization’s credibility.

Completion rate: Completion rate is the number of people who completed your video divided by the number of people who played it. Completion rate, and other engagement metrics, are a great way to gauge a viewer’s reaction to your video. Do you have a low completion rate? Are people all dropping off at a certain point? This might be a sign that your video content is not resonating with your target audience.
Social Media is constantly growing its popularity in the internet marketing industry. Much like the internet as a whole, social media websites such as Facebook and Twitter bring together millions of people. Using social media fan pages and business pages you can have your business put out there and recommended to thousands of locally targeted people in an instant. With that in mind, there are various other ways social media can be used as part of an internet marketing campaign.
Before your start filming, set a music budget and research your local copyright laws. Copyright law can be very difficult to decipher, especially when you’re dealing with digital content. Bottom line: Most music isn’t free. If you use another artist’s music without permission or proper licensing, you risk video removal and legal action. In order to avoid copyright infringement, you’ll need to find royalty free tunes or pay a composer to create an original score. Royalty free songs aren’t free to use; they’re quality songs available for a single flat fee. This means you don’t have to worry about paying additional licensing fees or royalties in the future. YouTube, Pond5, and PremiumBeat are all great sites to find royalty free music.
For instance, you might use Facebook’s Lookalike Audiences to get your message in front of an audience similar to your core demographic. Or, you could pay a social media influencer to share images of your products to her already well-established community. Paid social media can attract new customers to your brand or product, but you’ll want to conduct market research and A/B testing before investing too much in one social media channel.
"Looks great. Organic traffic has been holding steady at Feb/March levels when normally it declines from April onwards. Because of the seasonal nature of the business it is difficult to measure the exact impact, but I can tell you our organic traffic is currently almost 3 times what it was this time last year. All down to you guys! The trick for us is to try and sustain it throughout the summer, keeping our slow season as short as possible!" Ivan L.

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.
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