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A Quantitative Study of How Memes Spread
rememberclifford writes "A survey of about 3,000 people who were tagged in a '25 Random Things About Me' note on Facebook found that memes spread through social networks in a remarkably similar way as diseases do. A biologist who looked at the data says that '"25 Things" authors can be seen as "contagious" under what's known as a "susceptible-infected-recovered" model for the spread of disease,' with a propagation factor of 0.27 in this case. But like an infection, the whole thing died out as quickly as it exploded once the number of 'victims' — people who were willing to write 25 things about themselves — was depleted." The '25 Things' meme was at least as annoying as a light flu.
I remember talking about this word in grade school, oddly enough... It's pronounced "mem meee"
I have two links for you. First, folk etymology is when you try to reconstruct the orgin of the word based on something other than actual research: http://en.wikipedia.org/wiki/Folk_etymology
Second, the word meme was coined by Richard Dawkins (a biologist) to explain how ideas can pass from one person to a next and change slightly, just like genes. He says the word is pronounced to rhyme with "gene," and he should know, since he made it up. With all apologies to your grade school classmates, of course.
Oh, here's your second link: http://en.wikipedia.org/wiki/Meme