I do not know if I am the only one, but after "baby boomers," of which I am one, I have trouble defining the generations, so I wandered over to Wikipedia to get some clarity. Here are some definitions to help others struggling with "who is who!"
Greatest Generation (aka GI Generation) are the people who lived through the great depression, fought in World World II, and are the parents of the boomers
Baby Boomers (aka the "me" generation) are in the cohort born after WWII until the early 1960s (some say 1955)
Generation X (aka the 13th generation, or baby bust) is the generation following the boomers, born in the mid-1960s to 1980 when the number of babies born was apparently low (compared to the baby boom).
Generation Y (aka Millennial Generation, echo boomers, millenials, Generation Next) born sometime between the 1970s and 1990s, they are primarily offspring of the boomers.
Generation Z (aka people with parents born between 1960 and 1990) we do not have much to say about this group yet, as they are still being born.
So, I have to say I am glad I tried to figure this out because now I do not feel so bad. I do not think these terms are very helpful or descriptive since the definitions are not clear and many facts about each generation are debated hotly. Mostly the terms seem used in marketing and demographics, but hey, now I know. I can only wonder what generation comes next?