Fortune's best networker

If you haven't tweeted with him yet, you may soon: Entrepreneur Adam Rifkin has taken connecting to a whole new level. We selected him by scouring LinkedIn to see who was tied to the most top people on Fortune's lists.*

*From 2010 Fortune 500 CEOs, Fortune's 50 Smartest People in Tech, Fortune's 40 Under 40, and Fortune's 50 Most Powerful Women.

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The best networking email you'll get all year

10 ways to use social media in your job hunt