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Written by Marshall Kirkpatrick / April 17, 2009
In the old days, self-important people use to carry calling cards. Now we have Twitter, Facebook and other social media sites to turn us all into mini-celebrities.
So what's the new calling card online? That position's being jockeyed for as we speak, and different contenders are taking very different approaches.
Twitter released an important new feature to selected developers yesterday that could make it a compelling alternative to the fast growing Facebook Connect system for logging into sites around the web.