05/01/2009 05:12 am ET Updated May 25, 2011

Google's April Fools' Day Jokes Through The Years (SLIDESHOW)

More than any other Web company, Google has put together some of the most memorable and sophisticated April Fools' pranks, ranging from a toilet Internet service provider to a pagerank system based on pigeons.

Since 2000, Google has published one or more gags each year, according to Wikipedia, except for two years -- 2001 and 2003. Last year -- the peak of the Web 2.0 bubble -- included more than a dozen. Google's YouTube even "Rickrolled" everyone.

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