As an enterprenuer or business man,the power of social networks can not overlooked because it help in promoting the brand or name by using the social media.For instance,no matter your business type you need a facebook page or group,this can help you spread your product.other social media like LinkedIn, twitter, facebook, etc has helped me a lot...imagine a friend with over 100,000 followers decided to retweet your product on and on,you will definitely make some sales.But the good news here is that all are the social networks are free to use ,y not try and see how it works.for full detail article read 5 social networks for business