Whatever happened to Generation X?

I'll make this short.  I'm working on a series of posts about generational differences, and one of the first posts that I happened to look at, Why Generation Y Yuppies Are Unhappy, seemed to imply that there never was a Generation X.  I always thought there was, but what do I know?  The post basically says that the Boomers raised the Generation Y.  I thought perhaps it was an oversight by the original author, but then, to my surprise, in the comments I saw that one person claimed to have been born "on the cusp" of the baby boom/Gen Y.  So, being that I don't like to jump to conclusions without knowing at least some facts (see my recent poll of readers), I figured I'd ask my readers what they thought happened to Gen X.  Just leave a comment, and we'll get down to the bottom of this together.