If you're looking for the definition of demurrer or argle-bargle, pretty much any reputable dictionary published in the last hundred years will do. But if you're looking to find the meaning of "botnet," you might have to rely on less-established sources, even Wikipedia. While language and technology evolve quickly, giving us an endless list of neologisms ranging from "fax machine" to "defriend," the dictionary makers of the world, those modern-day Samuel Johnsons and Henry Campbell Blacks, take a bit more time to separate the wheat from the "chillax."
But they catch up eventually. This week, Merriam-Webster announced that it was adding more than 1,000 words to its pages, many of them technological in origin. Now you'll finally have something reliable to cite the next time you're explaining open-source NSFW listicles.