One way link building means you just put your link in other websites of your niche and in exchange no need to keep any other website link in your site. For example: Article, Social Bookmarking, Blogs etc
When some one get a link from a site without giving any link this is called one way link building. Example of one way link building is Forum posting, guest posting, blog posting, directory submission etc.
One Way backlink is better than Two Way backlink link reciprocal link since Google value only the One way backlink..We can obtain one way backlink from directory submission sites or from content relevant blog..
one way link back links are those links getting from niche websites after submitting articles, blogs, comments etc... it helps in search engine rankings
there are many SEO companies that offer quality to enhance website rankings by getting good back links from high authority sites.