Remember Twitter's blue checkmark? For a while, having one attached to your Twitter handle signified that you were notable or famous in some way. Twitter granted them sparingly. Then, as Twitter ...

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Robert Kelly is managing director of XTS Energy LLC, and has more than three decades of experience as a business executive. He is a professor of economics and has raised more than $4.5 billion in ...

WordPress MU, short for "multi-user," is a special version of the WordPress content management system that allows there to be many users with their own blogs working on the same WordPress install.