Startups are emerging all over the sector as difficult times have caused many to see new opportunities. The smart money knows not to count any of these new players out. What do these four companies have in common? Groupon, a coupons and deals provider (like Scoopon, which is better known in Australia).Slack, a collaboration tool for workplaces.Uber, the ride-sharing service (among other things).WhatsApp, the online text and voice messaging app. There’s more than one correct answer; for instanc
Just for$39.95per year
