Many may remember the hilarious Google Bomb of old, when no more than 50 webmasters linked to former President Bush's web page using the link anchor text "miserable failure", placing whitehouse.gov in the no. 1 spot for the search phrase "miserable failure". Since the incident, Google modified the algo to prevent Google Bombs and exploitation of such linking. So how did this latest Google Bomb go off? I used LinkDiagnosis.com to analyze all incoming links to whitehouse.gov, and after an hour, it spat out over 3000 incoming links. I downloaded the .csv file, sorted the anchor text and started scanning for variations of the phrase "cheerful achievement"... not a single occurrence. Hmmmm. Any thoughts, theories, etc?
Looks like it happened again! Friday, January 23, whitehouse.gov ranked no. 1 for the term "failure" on Google, and no. 1 for the term "miserable failure" on Yahoo. Since then, Google has addressed the problem, though it still appears in the top spot on Yahoo.
This has been around for ages, since 2005 - http://googleblog.blogspot.com/2005/09/googlebombing-failure.html
I think Google just did a manual edit and didn't change the algo that much to accommodate that situation.