Have you ever Googled Google on Google? It's more common than you might think.
This strange search trend is becoming more and more popular over time, as evidenced from the graph below. Google users Googling Google on Google seems to most happen when Google is in the news, which makes sense.
Most recently, the release of Google executive Wael Ghonim in Egypt led to a spike in Google searches for "Google."
GRAPH: Google search volume for the term "Google" via Google Insights

The interesting thing about Googling Google is it requires some effort. When you type the letter "g" in Google, Google suggests "gmail" first, followed by "google maps," "google.com," and "google translate." Even when you type "Google," those top three suggests stay the same, followed by "google earth," and finally "google."
So why do people do it besides the news? Well, for one, maybe they're trying to have some fun. Maybe they just want to see what results would come up. Or, maybe, they've heard the rumor that Googling Google breaks the Internet.
Seriously. If you check forums, such as Yahoo Answers, questions are asked based on the rumor like this one: "Is it true you can break the Internet by googling google?" The top answer encourages the questioner to try Googling Google, and then adds, "However, I heard that if you yahoo yahoo, you'll die in 7 days."
But the best answer to the question is on WikiAnswers. In response to "Will Googling Google really break the Internet," someone says the following:

No. In fact, I google google using google a googol amount of times every day and I get results about other people googling google while using google and when im done googling with google I google on google maps to find googols of maps about google and then I google google videos of google which demonstrate google and how to google it and when Im finally done I google with google while I blog about having googled using google and if you google a googol amount of times you will find this blog about me googling about google using google to illustrate how my daily life of googling works.

Another possibility for the trend: in some Web browsers, like Firefox and Safari, some accidentally Google Google in a search bar at the top simply because they are trying to access the Google website. The same may be true for some mobile browsers.
These are some reasons people might Google Google. Let us know in the comments if you have your own theories and we'll add some of the best ones to this post. And make sure you take our poll below!