Square has built a sizable lead over its competitors, which keeps widening as the start-up is aggressively upgrading its products to appeal to larger merchants....
Having grown exponentially in the U.S. over the past year, Square has raised $200M at a $3.25B valuation to bankroll an international expansion later this year....
The use of paper checks in the U.S. has been on the decline since the mid-1990s. By contrast, all forms of electronic payments have been on the rise....