Its means to create valuable content for your market, and then share the content through links. From tweeting the link, to posting on a social network, to posti

Its means to create valuable content for your market, and then share the content through links. From tweeting the link, to posting on a social network, to posting to web forums, to posting as a blog comment. But always stay in context. Don't post a link to post a link. This works very well and has a long term impact. Plus it improves your search rankings.