On Sunday, a computer hacker who calls himself "The Jester" claimed responsibility for the cyber attack that affected WikiLeaks.

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But now two other companies have challenged Google for the jester's crown Twitter, a microblogging service, and Zappos, an online shoe-shop.

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One plucky soul was determined to prove otherwise, however, and ran onto the stage in a jester's hat during Spain's performance - the first Eurovision stage invasion since 1964.

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The politically-shrewd and often critical bitcoin seeks independent validation like a jester in the court of monetary sovereigns.

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Rigoletto, the Duke's court jester in Piave's libretto, is transformed by Mayer into a hanger-on and comic along the lines of Don Rickles and Joey Bishop.

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He sees his role partly as that of court jester, challenging the received wisdom.

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Distributor Authentic Beverages, craft brewer Jester King, and brewpub Zax challenged these and other rules as violations of the First Amendment, the Fourteenth Amendment, and the Commerce Clause.

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Looks like a game of chess has gone awry and a big jester--oh, 20 feet--is on its back thrown from the roof of Mardi Gras World.

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