Some anti-choicers with a little tech know-how have made the Wikipedia page for "abortion" the second search result when you Google "murder." Their success is perhaps impressive, but manipulating search engine results isn't the most effective form of advocacy.
The abortion-murder link is obviously a political prank - says BoingBoing's Cory Doctorow, "However you feel about abortion, this Wikipedia page is pretty clearly not the second-most relevant document regarding murder on the entire English-speaking World Wide Web." Google-bombing, or artificially manipulating Google's search results through strategically placed links, has been used for political aims before, notably when activist George Johnston managed to make the search term "miserable failure" return a link to George W. Bush's official White House page. Google made changes in 2007 to make the process more difficult, but obviously it's still possible.