"Enter "Christianity is" and you'll find results that, while offensive, at least indicate common discussions on the Internet. Likewise, type "Judaism is" and Google suggests other, potentially offensive searches such as "Judaism is false" and "Judaism is not a race."
But type "Islam is" into the search engine and Google's auto-results pane mysteriously vanishes, leading some to conclude that Google, whose mantra is "don't be evil," is censoring its search results."
Try it yourself. It works. What cowards the Google folks are.