'Crazy' valuations spur tech bubble fears

While housing bubble worries may be overblown, whether the same is true in the booming tech industry is less than clear. Valley Wags’ Sam Biddle asks: When companies like Snapchat and Pinterest, which have not made a single dime — ever — are valued by investors at more than $4 billion, “(h)ow is this not a bubble, and why aren’t more people saying this is crazy?”

Source: Valley Wag