One-way links are the links to your site from other sites that do not receive a link back from your site. These links send an influential message to the search engines that your website is so interesting that other sites want to share it with people. This way, they increase your link popularity (i.e., the number of pages linking to your site). Search engines especially Google pays huge attention to link popularity when ranking any site. You can also get direct traffic to your site from visitors who click on the links. All links to your site works well but where possible always go for links related to your own niche.