Backlink [FONT="][/FONT]are probably the oldest and cheapest form of online marketing. They get the word out about websites and help to get websites indexed with the search engines. Basically, they serve two purposes - to get traffic to your website and to make your site more important in the eyes of the search engines. Backlinks are actual links from other sites or pages and are seen as a vote for your site. Reciprocal links are the easiest to find.