The site secured an angel investment in May 2011 worth up to 1 million to expand its operations.
He then raised a large round of angel investment.
In June 2002 the Company received its first round of angel investment.
Esther Dyson provided an early-stage angel investment in the company.
He made 80 angel investments in technology companies.
Flat World Knowledge secured $11.5 million in investments through 2010, including an initial $700k angel investment.
"They were at a break-even point and had an angel investment," referring to financial backers who provided seed money.
Profits from Ruckert's other businesses, as well as some angel investment, funded the start-up.
Yet the total volume of angel investment is estimated at five times the amount of venture-capital funds.
Wepolls Is a social polling network launched on 1 May, 2011 with $10,000 in angel investments.