Guest post is the best way toget ranking on search engines. If you want to do guest post, then this video will help you out. You can learn how to do guest blogging for SEO for free.
Here is the technique to double your search traffic just doing some activities. Must read.
Microblogging sites like Twitter are famous for sharing your status, video, link with your friends. List of microblogging sites is easily available on the net and you can also find in this post. Moreover, these websites are used for social engagement.