How does social marketing help in SEO?

Social marketing helps you to spread your domain name outside of your website. Thus making your site more visible. Higher visibility enhances the chances of getting visitors.

Now, one of the important factor in results ranking of any site for a search engine is the visitor traffic.The links to your websites, posted along with the articles submitted on various social marketing media act as a source of incoming traffic to your domain.

A well planned social marketing helps to get not just visitors but prospects. So don’t just spam the social sites with any and everything. Select sites that match your requirement and post relevant material. Feed quality to get quality visitors and don’t simply target traffic.

I think that is it and hope this answers your query.

Social Bookmarking helps by getting you linkbacks and getting your name out there to the public quicker and free. Its a new booming industry for the marketing world.

If the link is no follow then no direct SEO benefit. Indirectly it can help you. If your link gets popular within the social networks site , chances are good that members will recommend your site whenever they get any chance. More you will find here
http://www.bdhire.com/articles/traffic-and-link-building-through-social-networking-sites/

For most of us, social media that are related to our niche can help by giving our sites high-PR back-links. If you have a link to your site in your profile at a social site or, better still, you have your blog’s RSS feed there. you have a good back-link.

As to monetization, social traffic is not as reliable when it comes to conversion. Unless you have a really good and unique product. The best free traffic is search engine traffic. Unlike social traffic, people from search engines need or want something. Social media traffic are mostly friends who just want to pay a courtesy visit.