Since Panda, Google's been avoiding names. The new algorithm in January designed to penalize pages with too many ads above the fold was called the "page layout algorithm." When Penguin rolled out earlier this week on April 19, it was called the "webspam algorithm update" targetting sites that involved in keyword stuffing and link schemes.
Without a name for the new webspam algorithm, a last check with Google got it to release its own official name of "Penguin."
If your site got hit by the Google's new Penguin Update that rolled out on April 19, and if you feel your site is innocent or know a site affected by Penguin algorithm update that you don't think should be affected, Google has got a new feedback form for that, as well as a method to report spam that should have been caught.
Matt Cutts, Google's web spam team shared the information via a tweet saying:
If you know a site affected by algo update that you don't think should be affected, we made a form to provide feedback: goo.gl/nt3Pz-- Matt Cutts (@mattcutts) April 26, 2012
When you visit the link, it redirects you to a Google Docs form, entitled "Feedback on our recent algorithm update ("Penguin")" -- it then asks
for the URL of a page affected by the update, and an example of the query which shows "non-ideal results" and any additional comments.
The second form, is a standard spam reporting page -- that let you report spam that you think the Penguin Update should have caught, but hasn't.
Google says to use that form, bypass options like reporting paid links and use the "Report webspam" button. Selecting that brings up a form where you can enter the URL of the spammy page, the exact query it shows up for and any additional details. It's important to use the word "penguin" as part of the details field.