This is so funny I laughed until I cried! Definitely NSFW. OMG it's hilarious, but it's also not a bad overview of the issues. Especially loved: You read the latest post on HighScalability.com and think you are a f*cking Google and architect and parrot slogans like Web Scale and Sharding but you have no idea what the f*ck you are talking about. There are so many more gems like that.
Thanks to Alex Popescu for posting this on MongoDB is Web Scale. Whoever made this deserves a Webby.