This is where you agree to link to someone else’s site if they agree to link to yours. Exchanging links with other sites is the most effective means of advertising for FREE. Basically the more links you have to your site, the more traffic you will have and it will help you to achieve higher page rankings in the major search engines and directories. You have to be careful here and not just submit to any site. Here are a few guidelines:

• Theme: is important. The site you are exchanging links with should have the same theme as yours. For example, if your site is about hosting and domain names then look for link exchanges with hosting and domain directories.
• Page Rank: the website should at least have some Page Rank.