Strengths

Advantages of viral marketing

• Cost effective
  
  Cost is more important than ever before, especially in the current economic climate. It is a very cost-effective way to reach large part of target audiences by using viral marketing techniques, such as joining social networks, building profiles, writing blogs and making videos. It adds a personal touch with the customers, as company can distribute their promotion materials through email, and customers may also forward the materials to their friends or family members. Compare with the traditional advertising, the cost must be much lower by using social network.

• Earn credibility and awareness
  
  
  
  Brand credibility is often pointed out by marketing experts as one psychological factor that could trigger the buying impulse of consumers. However, just like with any type of triggers, it can produce a positive or negative effect. Writing quality articles or creating quality videos will help the company to earn credibility. Because of no restrictions or reservations, medium allows you to be as creative you want People are easy to remember those advertising videos; it helps brand and companies to create awareness.
  
  Acknowledging:

http://sbaer.uca.edu/research/mma/2002/32.pdf

http://www.squidoo.com/increased-brand-credibility-increased-sales

Advantages of Viral Marketing

1. Earn Credibility
Writing quality articles or creating quality videos will quickly establish you as an expert in your field. You will earn credibility if the content you have written/created provides solutions to people's problems.

2. Increase Link Popularity
Distributing free content is gathering inbound links, when people post or distribute your article/video on their website, they are in essence providing one-way links to yours. If these one-way links originate from quality websites it will boost the pagerank of your web page.


3. Make Backend Sales
The primary reason experienced marketers offer free content is to build up their opt-in lists. They offered what they termed 'front end products' in the form of free content. Their strategy is to get people to their website to signup for their mailers. Eventually through the mailers they make 'backend sales'.