Wp Social Poster will automatically syndicate your blog post (or any content that you want) automatically to social networking sites every timeyou create or publish a post in your wordpress sites. this process is completely automated and it runs in the backgroun. Just write a new post and either your entire post or any content that you want with your backlink will be published to all of your configured social networks.
It will help you rank your sites on google, yahoo and bing in a short period of time.
It will help to increase the site's authority in google eyes by building backlinks from high authority social networking sites.
Most of all it's very easy to install.