McMohan - 6:46 am on Sep 13, 2013 (gmt 0)
and take some action to remove or disavow links that might be deemed artificial
May I take a contrarian view?
With the first message ( where Google says only some links are ignored and you may file a reconsideration if you can get rid of such links), Google is only testing if you really control those links or if you are a victim of competitor sabotage. If links go soon after the first penalty message, your guilt is established and you are a candidate for overall penalty.
internetheaven, did you remove some links after you received the first penalty message from Google?