irishsolar - 4:20 pm on Apr 14, 2012 (gmt 0)
After over 10 years of consistently ranking between position #1 and #3 on page one for a single four letter word search term, the month of March (starting on the 10th) has resulted in falling to below the fold, then to page 2, then page 3 and today I have been completely removed for that term.
@backdraft7 Did your site ever re-materialise for that search term?
My main landing page did not return to the SERPs for its main keyword phrase but an internal page, which is relevant but not SEO-ed, is staying steady on page 3 for that term.
Interestingly this page had a spike of social media attention around the time of the update (google plus 1 & Facebook likes) due to a completely unintentional (timing wise) marketing experiment.