Reciprocal Link

A reciprocal link is a mutual link between two websites in order to ensure mutual traffic.
For example:
Driving Schools Directory
Toronto Limousine

This article discusses the effectiveness of reciprocal linking.

More information on reciprocal links can be read here.

Link Building Strategies and Opportunities

It's no longer easy to build links to your site, as the search engines are not particularly fond of link exchanges. This article discusses how you can find new ways to receive inbound-links to your site.

The Importance of Link Building

This article discusses what type of links effect your page's ranking on Search engines.