Many website owners and SEOs (search engine optimizers) believe
that trading links is the most effective way to build the
hundreds of links necessary for good search-engine ranking. But
there's another way to build links that deserves your attention:
content distribution.

A time-honored way of getting one-way inbound links to your
website is to distribute content, usually articles, for other
websites to publish in exchange for a backlink. Most often, the
backlink is included in an "author's resource box," which is a
brief "about the author" paragraph promoting the author's site.

Content distribution has usually been thought of as a website
promotion strategy rather than an SEO or link-building
strategy. But there are good reasons for adding content
distribution to your SEO toolkit.

Read more about content distribution