[keltex]

Use Open Site Explorer to start on your bad link search:

http://www.opensiteexplorer.org/domains?site=safeshepherd.co...

[sixQuarks]

OpenSE and Majestic SEO databases are not really going to find the spammy links that penguin is targeting:

http://www.branded3.com/seo/penguin-update-renders-seomoz-ma...