Know when you are Penalized By Google
Google Webmaster Central
In July Google started notifying their verified site owners of their penalties via a Message Center in Google Webmaster Central. However this system still do not allow Google to contact publishers who do not use Google Webmaster Tools as yet.
Ben Dâ€™Angelo writes on the Google Webmaster Central Blog :
While Message Center is great for verified site owners, it doesnâ€™t allow us to notify webmasters who arenâ€™t registered in Googleâ€™s Webmaster Tools. For this reason, we plan to resume sending emails in addition to the Message Center notifications. Please note that, as before, our emails will not include attachments. Currently, the Message Center wonâ€™t keep messages waiting if you havenâ€™t previously registered, but we hope to add that feature in the next few months. Weâ€™ll keep you posted as things change.