Here are few important and useful links that you may use to know and learn more about the "link development"
1. http://www.webmasterworld.com/forum12/1051.htm
2. http://forums.digitalpoint.com/forumdisplay.php?f=13
3. 5 Link Development Guidelines
http://www.seodesignsolutions.com/blog/link-building/555-link-development-guidelines-you-can-build-on/