GeekyNet
YTtalk Mad
Search for your link online to see if people shared your video on any social networks, forums, etc. I've seen crazy spikes in the thousands of views, and it's usually because someone posted my video somewhere or another video that routinely shows my video as a suggested/related video got a lot of views.
which would get you even more views. It's also good to have that tag in the first sentence of your description, so you could put something like "In this video I'll be showing you the new infinite warfare guns." as the first sentence to boost your chances of ranking for it.