The Man Who Turned a $1 Million Groupon Investment into $4 Billion - WSJ
Eric Lefkofsky
Groupon co-founder pays $19.5 million for Glencoe mansion
Eric Lefkofsky Net Worth (2023) | wallmine
Eric Lefkofsky Net Worth: A Look at the Billionaire's Wealth and Philanthropy!
JOBS Act Jeopardizes Safety Net for Investors - The New York Times
Why Groupon's cofounder is diving head first into healthcare - MedCity News
Chicago billionaire identified as mystery buyer who paid $24 million for 3.3 acres in Winnetka
Healthcare Unicorn CEO Is Now A Billionaire
Glencoe Billionaire Buys $30.7M Penthouse In Florida: Report | Winnetka, IL Patch
Groupon's billionaire cofounder Eric Lefkofsky just raised $70 million for his new company | TechCrunch
The richest people in Illinois, according to Forbes - The San Diego Union-Tribune
Groupon Cofounders About To Become Billionaires?
Zell Chicago's richest again; Lefkofsky nearly doubles wealth: Forbes - Chicago Sun-Times
Eric Lefkofsky: American entrepreneur, billionaire, and philanthropist (1969-) | Biography, Facts, Information, Career, Wiki, Life
Eric Lefkofsky, Groupon Backer, on Why Social Media Is Hot - The New York Times
Eric Lefkofsky - Wikipedia
Eric Lefkofsky: A Significantly Better World – Brewminate: A Bold Blend of News and Ideas
Eric Lefkofsky Net Worth | Celebrity Net Worth
Russian investors, Facebook Connect and Groupon's sprint to a $1 billion valuation | by Brian Mohr | Medium
Eric Lefkofsky Net Worth 2023: Business Income Career Wife
Chicago Inno - Eric Lefkofsky's Self-Funded Mission to Cure Cancer Through Data
Top 10 People Who Got Filthy Rich In 2011
Eric Lefkofsky Net Worth | Celebrity Net Worth
