Interestingly the term meme has been around before the daily use of the internet. Richard Dawkins, an evolutionary biologist first used the word in 1976 in his book The Selfish Gene. Dawkins defined the word as: "a unit of cultural transmission, or a unit of imitation". Many people have criticized that Dawkins definition is vague.
Since I too felt that Dawkins' definition was vague, I continued to search the internet. One concrete example of a meme is common sense. It is considered a meme since it is passed from generation to generation and evolves over time.
My next question, after finally figuring out what a meme is, is how does it relate to the internet? Wikipedia (I'm guessing it might fall into the category of an internet meme) defines an internet meme as: "catchphrase or concept that spreads quickly from person to person via the internet".
One of the first internet meme's, from the early 1990's was the Hampster Dance (new to me!). If you have not seen the Hampster Dance you defiantly need to check it out to get your daily chuckle.
Wikipedia goes on to say that the most basic example of an internet meme is when people hyperlink to a website. I guess I have been memeing for awhile and didn't know it! Technically the professional meme that I did yesterday is not considered an internet meme by all people, while others think they are. I'm not an expert in meme's, so I will default that they are one.