Last week, I spotted former Googler Natalie Glance, who worked at Google as an Engineering Manager for almost 8 years, post on Google+ about spam in the Google search results.
Her former colleague, Todd Underwood from Google, said "I'll file it" on April 6th. I assume he did but when you look, the duplicate listings in the search results still exist for the query.
Search for [learn spanish] and the top two lead to the same site and company:
The template is slightly changed, the URL is different, but the same company, with similar content.
Former Googler, Natalie Glance said on Google+:
To my Google friends:The top two results for "learn spanish" have different domains, but point to the same page. Also, they look pretty spammy, based on search results for "learnspanish.com" and "studyspanish.com".
Still an issue today, a week later.
Forum discussion at Google+.