bhartzer - 2:50 am on Jan 16, 2006 (gmt 0)

Sudden drop in rankings

Make sure you didn't add any new links from other domains hosted on the same class C block of IPs.

Look at any new changes that you made to the site--check for SEO Overkill or an Over-Optimization Penalty (OOP).

Analyze your links and make sure you're not participating in a bad neighborhood that just got tanked.