Google has customized results for Obama, but not Romney
Found on CNet News on Monday, 05 November 2012

The Wall Street Journal reported yesterday that it commissioned a study on the way in which search results related to President Barack Obama and Mitt Romney are displayed on Google. The study found that when users search for "Obama" or "Romney," Google displays standard results. Other related searches, however, are treated differently.
Those who had already searched for "Obama" found that their results were customized to relate in some way to the president. Searches on those topics yielded no such customizations for Romney seekers.
The idea to guess what users want to search has always been a stupid one. It reminds one of Clippy.