We have talked about a few ways to increase Google rankings of an existing page for common queries in class. A “Googlebomb” refers to a prank people attempt to cause someone else’s site to rank high for an obscure or meaningless query. An example of such prank is a search for “miserable failure” on Google brought up the official George W. Bush biography from the US White House web site a few years ago. A Google bomb is created by creating many sites that link to that page using consistent anchor text. Google originally would not alter the search result because it wished to preserve the integrity of its search engine, but in January 2007, Google changed the indexing structure; it tries to only display the comments and articles relating to the topics to minimize the effect of the prank. As of now, a search for “miserable failure” no longer return the biography of George W. Bush as the first hit.

Even though Google bomb was just a prank, in a way, it provided a method to create misleading information. Google’s methodology for ranking web pages are often good at estimating what you are looking for provided the keyword, but sometimes the return results might not be what you are really looking for. Even though it might have already tried to minimize the effect such prank, but it is still possible to spread the misleading information by Google bombing. If some misleading information relating to a keyword is ranked highest, it is more likely people click on the first link returned from the search and start reading about it, then the person might start believing in the misleading information. It is also possible to Google bomb other pages that may also provide the misleading information to push down the more relevant information to the second page so that people are less likely to see, then the likelihood of people seeing and believing the misleading information increases a lot.

http://searchengineland.com/070125-230048.php