linktycoon.com
linktycoon.com
http://linktycoon.com/
ontolo.com
ontolo.com
http://ontolo.com/link-building-tools
searchenginewatch.com
searchenginewatch.com
http://searchenginewatch.com/article/2073995/30-More-Tools-to-Automate-Your-Link-Building
serpzilla.com
serpzilla.com
http://serpzilla.com/
tools.seobook.com
tools.seobook.com
http://tools.seobook.com/link-tools/
wiep.net
wiep.net
http://wiep.net/link-building-tools/
www.seomoz.org
www.seomoz.org
http://www.seomoz.org/blog/link-building-tools
www.toprankblog.com
www.toprankblog.com
http://www.toprankblog.com/2009/11/1-seo-tools-for-tracking-inbound-links/