A backlink or inbound link is a link to your site. You want to get as many links as you can pointing to your site from as many different domains as you can, but do not want to set up links back to the linking site.
Originally Posted by Arunkumar
1. Reciprocal links are believed to cancel each other out.
2. It is obvious that reciprocal links are not natural links. Google prefers natural links, which are the links typically found within the content on a page. Links in footers and sidebars are not natural links.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -- Benjamin Franklin