The Inverse Ninja Principle states that ninjas get more powerful the fewer of them there are on a side. So by this logic, a lone ninja is a nigh-unstoppable force.
While this may be(read: "almost always is") true, a ninja still needs allies from time-to-time. As such, the friends of Almost Certainly Ninja are many and formidable. So if you think ACN brightened your life a little today, then be sure to visit these folks as well.