Thanks to this investment from Earlybird, Peak is well positioned to lead this second wave of social gaming growth.

FORBES: Connect

"The borders between seed and series A have really fudged, " said Ciaran O'Leary, a Berlin-based partner at Earlybird Venture Capital.

WSJ: Shining a Spotlight on Venture Capital

They include people who buy Business Select Fares, Rapid Rewards Members with A-List and A-List Preferred status, and EarlyBird Check-In customers.

CNN: Southwest charges extra to board first

Foreign investment firms Atomico, EarlyBird Ventures, Hummingbird Ventures, and Intel Capital have all rolled out a presence in Istanbul.

FORBES: Startup financing? One Turk Gets Angel Heavy: Startup Turkey Takeaway #3

In Germany seed money has roughly quintupled in the past five years, says Hendrik Brandis of Earlybird Venture Capital, a venture-capital firm in Munich.

ECONOMIST: European entrepreneurs