Site Owners Forums - Webmaster Forums - I should go to a social bookmarking?

Although there are a certain number of SEO marketing techniques, I have heard of social bookmarking and social as well as two effective SEO marketing techniques. I learned from the Internet search engine optimization, I was able to effectively use SEO marketing techniques, such as writing articles, articles submitted to the squid and other marketing techniques, I see other ways, that is, social bookmarking and social networking. How is one different from the other? The bookmark will be better networking? If you will be able to share your thoughts on this topic, I will definitely go to my site optimized to make the necessary changes, the use of any one or two marketing techniques, how to apply it to my site.