Is social networks Marketing better than search engine Marketing?

I think social media marketing can help you to spread the word of mouth and to put your company in a visible place in search engines.

No. One important thing to remember is that it all begins with a search. People first search for what they are looking for then decide whether the options at their disposals are worthy of their time.

Social networking sites are more for amplifying the impact the a business wants to create to attract new customers. People go on these sites to interact and find new people to connect to & not search for businesses. There are search engines for it.