(Disclaimer: I am quite certain there are plenty of [better] articles written about memes and their social significance in today's world. This entry is written without my reading a single one of those well-researched columns. I probably should have.) To my...ahem...older readers, the clinical definition of a meme is: an element of a culture or system of behavior that may be considered to be passed from one individual to another by nongenetic means, especially imitation. Addit