Inbound links and link exchanges
In-Bound link – When one website links to another website without receiving a link back. You can get in-bound links to your site by directory submissions. You have number of free directories to submit to, that not only save your time but also help you in getting listed as much as possible.
Another way to get inbound links to your site is to do an ad. You can do it free and your site will get good visitors and inbound links as well. If your site has good content than definitely your site will get lot of visitors and also inbound links.
Generally, inbound links are used for increasing the page rank, Google and other search engines give priority to inbound links, whenever link exchange is done always inbound links are considered as a major part of the website.
Why any website would want to exchange link with your site? Because your site has good inbound links and page rank. Therefore inbound links play an important role in link exchange.