One of the effective website promotion tools is link exchange. Link exchange has been defined as the process of exchanging links between websites. Link exchange helps you in two different ways, One is through direct links and the other is by increasing your Page Rank for SEO purposes.
By exchanging links with other websites, especially complementary ones, is a good way to widen your online presence. By joining link exchange programs, you are required to surf the websites of other members owners. Every time you surf a member site, you earn credits, which are transformed into visits to your own sites by the other members. Primarily by surfing one another's sites, members of link exchange programs already increase traffic.