If you're analytically inclined—say if you're Nate Silver, or Whet Moser—you can do productive, interesting things, oriented toward the advancement of human knowledge, with a tool like the Ngram Viewer. If you're me, you can at least entertain yourself for a couple minutes.
Like if you consider what a great word corpus is, and compare it to similar words (click the images below to blow them up):
Or just enter some random names of months, to gauge their popularity over time:
July was really hot in the 60s.
As I mentioned, the new Ngram Viewer also allows you to sort words by how they're used as parts of speech: whether, for instance, you're using crap like a British person—i.e., as an adjective—or, like a patriot, as a noun. In certain cases this tests the limit of the application: will friend be found as a verb? (I didn't try defriend.)
It will not. But if you're that committed to depressing yourself by the way that tech- and corporatespeak are degrading the English language, try tracking the progress of three of the emptiest grammatical constructions known to man: reach out, circle back, and going forward.
Like Barack Obama and the Electoral College, reach out retains the edge by a wide margin, and you'll notice that going forward was long on the decline. It's making its way back, though, in offices throughout the country. Don't say I didn't warn you.